The stock game library in baseq2 is never overwritten. The single-player experiments run through the Q2PRO-X library and are meant for local single player only: deathmatch 0, one client, no remote online play and no effect on anyone else's servers.

	No experiment in this guide changes server rules, works in an online match, or gives an advantage online.

Where things are

What	Menu path
Campaign, skill, saves	Main menu → Play offline
Single-player training	Main menu → Play offline → Q2PRO-X / Single Player Training
Single-player experiments	In-game menu → Q2PRO-X / Single Player Experiments
Mod command overlay	Main menu → Online Play Setup → Mod Command Overlay

1. Campaign and training

1.1. Ordinary single player

Play offline

Type	Section	Row	Variable or target	What it does
Section	Campaign	Campaign
Navigation	Campaign	easy	Skill 0; deathmatch 0; coop 0; maxclients 1; newgame	Start a new single-player game.
Navigation	Campaign	medium	Skill 1; deathmatch 0; coop 0; maxclients 1; newgame	Start a new single-player game.
Navigation	Campaign	hard	Skill 2; deathmatch 0; coop 0; maxclients 1; newgame	Start a new single-player game.
Navigation	Campaign	nightmare	Skill 3; deathmatch 0; coop 0; maxclients 1; newgame	Start a new single-player game.
Section	Experiments	Experiments
Navigation	Experiments	DM Map Training...	q2prox_sp_training_root	Open DM-map training: play multiplayer maps in local single player with monsters and optional scoring.
Navigation	Experiments	Single Player Experiments...	q2prox_sp_experiments	Open local single-player experiments: spawn mutators, DM-map training, monster visual variants, and geometry deformation.
Section	Saves & Profile	Saves & Profile
Navigation	Saves & Profile	Load game...	loadgame	Load a saved single-player game from a slot.
Navigation	Saves & Profile	Save game...	savegame	Save the current single-player game to a slot.
Navigation	Saves & Profile	Player setup (Q2PRO-X)	q2prox_player_identity	Edit name / skin / handedness / fov via Q2PRO-X DSL rows.
Navigation	Saves & Profile	Player setup (3D preview)	players	Built-in player setup page with the 3D player model preview.

1.2. Single-player training

Q2PRO-X / Single Player Training

Type	Row	Variable or target	What it does
Slider	Skill	skill	Quake II difficulty for the next loaded map. Higher skill also allows stronger monsters in DM training. Applies immediately.
Navigation	Map selection...	q2prox_sp_training_map_picker
Navigation	Training settings...	q2prox_sp_dm_training
Navigation	Cancel	forcemenuoff

A separate page lets you pick the map to train on.

2. Single-player experiments

Q2PRO-X / Single Player Experiments

Type	Section	Row	Variable or target	What it does
Section	Modes	Modes
Navigation	Modes	Item and Monster Randomizer	q2prox_sp_mutator	Randomize item and monster classes when a map is loaded. Seed 0 gives a fresh layout every load; non-zero seed repeats the same layout.
Navigation	Modes	DM Map Training	q2prox_sp_dm_training	Play DM maps in local single player with monsters spawned at multiplayer start points, optional respawn and optional scoring.
Navigation	Modes	Geometry Deformation	q2prox_sp_geo_deform	Visually changes the level mesh for local single player: uneven surfaces, stronger geometry variation, and optional rounded corners. Movement and collision stay original.
Navigation	Modes	Monster Appearance Variants	q2prox_sp_monster_variants	Make repeated monsters look like different individuals: subtle size and color variation, with feet kept planted on the floor. Local single player only; no gameplay or hitbox changes.
Navigation	Modes	Liquid Swap	q2prox_sp_liquid_swap	Replace water with lava (or lava with water) in local single player: real damage, physics, material and AVFX. Off by default; no effect in deathmatch/coop/demo.
Section	Monsters	Monsters
Toggle	Monsters	Free World	cl_sp_free_world	Idle monsters walk around the level instead of standing still until they see you. They walk, never run, and go where they are facing. Ambush monsters and patrols wander too - that is the point. Off by default. Local single player only. Applies immediately.
Toggle	Monsters	Skill-based monster speed	cl_sp_monster_skill_speed	Applies DM-training-like skill speed (1x/1.5x/3x/5x at skill 0/1/2/3) to ordinary local single-player campaign monsters. Off by default. Does not affect deathmatch, coop, demo, or DM-training maps. Applies immediately.
Slider	Monsters	Skill speed intensity	cl_sp_monster_skill_speed_scale	Strength of the skill speed multiplier above 1.0x. Default 1.0 = exact P1d table; 0.5 = half the additional speed. 2.0 = Double the additional speed. Applies immediately.
Section	Lightning	Lightning
Toggle	Lightning	Lightning damages monsters	cl_sp_avfx_lightning_damage	Lightning radial-damages nearby monsters in local single-player and DM-training. Off by default. No effect in deathmatch / coop / demos / remote multiplayer. Player and items not damaged. Bosses included by default. (Mirrored from AVFX / Storm & Sky for convenience.) Applies immediately.
Slider	Lightning	Lightning damage amount	cl_sp_avfx_lightning_damage_amount	Damage at strike center (rocket-class default 120). Falls off to ~25% at the radius edge. Tougher monsters survive more strikes. Applies immediately.
Slider	Lightning	Lightning damage radius	cl_sp_avfx_lightning_damage_radius	Damage radius in world units (default 800, ~5x grenade launcher splash). Damage falls off with distance from strike center. Applies immediately.
Toggle	Lightning	Require line of sight	cl_sp_avfx_lightning_damage_los	Require line-of-sight from strike point to monster center: lightning does not hurt monsters behind thick walls (MASK_SOLID trace). Applies immediately.
Toggle	Lightning	Lightning breaks objects	cl_sp_avfx_lightning_damage_breakables	Allow AVFX lightning to damage nearby explosive barrels (misc_explobox) and breakable func_explosive brushes using the same amount/radius/falloff settings as monster lightning damage. Off by default. Doors, buttons, triggers and scripted entities are never affected. Applies immediately.
Section	Contacts & Diagnostics	Contacts & Diagnostics
Navigation	Contacts & Diagnostics	Monster AVFX contacts...	q2prox_avfx_monster_contacts	Monster AVFX contacts: footprints on snow, puddle ripples, landing splashes (local SP / DM-training).
Navigation	Contacts & Diagnostics	Mutator info...	sv	Print active mutation mode, seed, map name, and per-load mutation counters.

Every section below opens from that page.

3. Item and monster randomizer

The randomizer changes item and monster classes when a map loads. A seed of 0 gives a fresh layout on every start; a non-zero seed repeats the same layout.

Q2PRO-X / Single Player — Item and Monster Randomizer

Type	Section	Row	Variable or target	What it does
Section	Items	Items
Toggle	Items	Randomize items	cl_sp_mutate_items	Replace item pickups when a single-player map is loaded. Keys are never replaced; scripted items stay protected by default.
List	Items	Item mode	cl_sp_mutate_item_mode	Chooses how freely items may change: same family, combat-related families, or full chaos for any non-key item. [Same category / Combat set / Chaos]
Slider	Items	Item categories	cl_sp_mutate_item_cats	Item category mask: 1 armor, 2 ammo, 4 weapons, 8 powerups, 16 health; 31 means all categories.
Section	Monsters	Monsters
Toggle	Monsters	Randomize monsters	cl_sp_mutate_monsters	Replace monster classes when a single-player map is loaded. Bosses and scripted monsters stay protected unless explicitly allowed.
List	Monsters	Monster mode	cl_sp_mutate_monster_mode	Chooses how far monster replacements may move by strength: same strength, nearby strength, or chaos. [Same strength / Nearby strength / Chaos]
Section	Layout & pool	Layout & pool
Slider	Layout & pool	Layout seed	cl_sp_mutate_seed	0 gives a fresh random layout every map load. Non-zero values repeat the same layout for testing or sharing.
Toggle	Layout & pool	Affect scripted entities	cl_sp_mutate_allow_linked_entities	Also replace scripted or connected entities. Leave off for normal play, because some maps can become impossible to finish.
Toggle	Layout & pool	Bosses in pool	cl_sp_mutate_allow_bosses	Allow boss monsters in the replacement pool. This can sharply raise difficulty.
Section	Destruction (AVFX)	Destruction (AVFX)
Toggle	Destruction (AVFX)	Lightning breaks objects	cl_sp_avfx_lightning_damage_breakables	Mirror of AVFX / Storm Settings: allow AVFX lightning to damage nearby explosive barrels (misc_explobox) and breakable func_explosive brushes. Uses the lightning damage amount/radius/LOS settings. Off by default; doors, buttons, triggers and scripted entities are never affected. Applies immediately.
Toggle	Destruction (AVFX)	Meteors hit monsters	cl_sp_avfx_meteor_impact_damage	Mirror of AVFX / Impact Meteors: meteor damage to monsters in SP / SP-training. Off by default.
Toggle	Destruction (AVFX)	Meteors break objects	cl_sp_avfx_meteor_impact_damage_breakables	Mirror of AVFX / Impact Meteors: meteor detonates misc_explobox + damages func_explosive.
Navigation	Destruction (AVFX)	Applies on next map command	echo	Apply the current settings on the next map load. Start a fresh map via the standard game menu or map <name>.
Navigation	Destruction (AVFX)	Mutator info...	sv	Print active mutation mode, seed, map name, and per-load mutation counters.

Keys and story progression items are protected. For an ordinary playthrough, do not enable linked entities unless you are ready for the map to become impossible to finish.

4. DM map training

Training lets you play multiplayer maps locally on your own, with monsters on the player spawn points.

cl_sp_mutate_dm_training 1

map q2dm1

Q2PRO-X / Single Player — DM Map Training

Type	Section	Row	Variable or target	What it does
Section	Basics	Basics
Toggle	Basics	Enable training	cl_sp_mutate_dm_training	Populates suitable DM maps with monsters at multiplayer spawn points when loaded in local single player.
Slider	Basics	Monster count	cl_sp_mutate_dm_count	Desired number of training monsters. The map's spawn point count can limit the final number.
Section	Respawn	Respawn
Toggle	Respawn	Respawn dead monsters	cl_sp_mutate_dm_respawn	Respawn dead training monsters at a free DM spawn point after the configured delay. Skips points too close to the player or another live training monster.
Slider	Respawn	Respawn delay	cl_sp_mutate_dm_respawn_delay	Seconds between a training monster's death and its respawn. Only when respawn is on. Minimum 1.
Toggle	Respawn	Respawn items	cl_sp_mutate_dm_respawn_items	When SP DM-training is active, weapons, armor, health, ammo and powerups respawn at their original pickup points like in multiplayer. Keys, dropped items and scripted progression items never respawn. Default ON.
Section	Scoring	Scoring
Toggle	Scoring	Scoring mode	cl_sp_mutate_dm_score	Enables a score-based training round: kills give points, monster damage subtracts points, player death ends the round.
Slider	Scoring	Score target	cl_sp_mutate_dm_score_limit	Score needed to win the round.
Slider	Scoring	Damage penalty	cl_sp_mutate_dm_score_damage_scale	How strongly monster damage subtracts score. 0 disables the damage penalty.
Toggle	Scoring	Show score	cl_sp_mutate_dm_score_hud	Shows the current score and round state on the HUD.
Slider	Scoring	Score X	cl_sp_mutate_dm_score_hud_x	Horizontal position of the score display. Applies immediately.
Slider	Scoring	Score Y	cl_sp_mutate_dm_score_hud_y	Vertical position of the score display. Applies immediately.
Section	Spawn & pool	Spawn & pool
Slider	Spawn & pool	Min player distance	cl_sp_mutate_dm_min_player_dist	Minimum distance in Q2 units between a (re)spawn point and the player. Closer points are skipped.
Slider	Spawn & pool	Min monster distance	cl_sp_mutate_dm_min_monster_dist	Minimum distance in Q2 units between two simultaneously-living training monsters.
Toggle	Spawn & pool	Heavy monsters	cl_sp_mutate_dm_allow_heavy	Allow heavy monsters in the training pool.
Toggle	Spawn & pool	Boss monsters	cl_sp_mutate_dm_allow_bosses	Allow boss monsters in the training pool.
Navigation	Spawn & pool	Applies on next map command	echo	Apply the current DM training settings on the next map load. Start a fresh DM map via the console (map q2dm1 etc.) or game menu.
Navigation	Spawn & pool	Mutator info...	sv	Print DM training status, spawn point count, alive/target monster counts, and skip counters.

The sv sp_mutator_info command prints the state, the target and alive monster counts, the number of spawn points and the skip counters. The sp_dm_restart command restarts the current training round with the current settings.

5. Geometry deformation

Deformation visually changes the level's surface: bumps, tilt, noise, rounded corners. It is render-only: movement, collision, saves, the AI and the game logic remain original.

Q2PRO-X / Single Player — Geometry

Type	Section	Row	Variable or target	What it does
Section	Basics	Basics
Toggle	Basics	Deform geometry	cl_sp_geo_deform	Turns visual level deformation on or off for local single player. Movement, collision, saves and server logic stay unchanged. Applies immediately.
Slider	Basics	Deformation strength	cl_sp_geo_deform_preset	Overall geometry variation. 0 turns the feature off. Higher values make the level shape more visibly uneven, up to the safe maximum at 100. Applies immediately.
Slider	Basics	Variation seed	cl_sp_geo_deform_seed	Repeatable variation seed. Same map, seed and settings give the same visual shape; changing it rerolls the level look. Applies immediately.
Toggle	Basics	AVFX follows surface	cl_sp_geo_deform_avfx_sync	Lets AVFX visual overlays such as puddles, snow and rings follow the changed visible surface where possible. Applies immediately.
Section	Rounded corners	Rounded corners
Toggle	Rounded corners	Round corners	cl_sp_geo_round_edges	Adds visual rounded corners to suitable static wall edges. Moving platforms, liquids, sky and transparent surfaces are left untouched. Applies immediately.
Slider	Rounded corners	Corner roundness	cl_sp_geo_round_edges_amount	How strongly corners are rounded. 0 hides the rounded surfaces; 100 uses the full selected radius. Applies immediately.
Slider	Rounded corners	Corner radius	cl_sp_geo_round_edges_radius	Approximate width of rounded corners in world units. Short edges are limited automatically. Applies immediately.
Slider	Rounded corners	Corner smoothness	cl_sp_geo_round_edges_segments	Smoothness of rounded corners. Higher values look smoother but add more geometry. Applies immediately.
Slider	Rounded corners	Corner angle threshold	cl_sp_geo_round_edges_angle_threshold	Which angles are sharp enough to receive rounding. Higher values affect fewer, sharper corners. Applies immediately.
Section	Manual displacement	Manual displacement
Slider	Manual displacement	Large displacement	cl_sp_geo_deform_strength	Manual broad displacement amount. Usually controlled by the main strength row above. Applies immediately.
Slider	Manual displacement	Surface tilt	cl_sp_geo_deform_tilt	Manual surface tilt amount. Higher values make surfaces lean more. Applies immediately.
Slider	Manual displacement	Fine roughness	cl_sp_geo_deform_noise	Manual fine roughness. Lower it if very small visual noise is unwanted. Applies immediately.
Section	Service	Service
Navigation	Service	Apply now...	sp_geo_deform_apply	Rebuild the visible level geometry immediately with the current settings.
Navigation	Service	Geometry info...	sp_geo_deform_info	Print current geometry settings and rebuild counters to the console.

6. Liquid swap

The swap exchanges water and lava in local single player. It is not cosmetic: damage, physics, material and AVFX contacts follow the effective liquid.

Q2PRO-X / Single Player — Liquid Swap

Type	Row	Variable or target	What it does
Toggle	Water to lava	cl_sp_mutate_water_to_lava	Water becomes real lava in local SP: lava damage, physics and lava material/visuals. Off by default. No effect in deathmatch/coop/demo. Applies immediately.
Toggle	Lava to water	cl_sp_mutate_lava_to_water	Lava becomes water in local SP: no lava damage, water physics and water material/visuals. Off by default. If both directions are ON, real BSP water becomes lava and real BSP lava becomes water independently. Applies immediately.
Toggle	Swap visuals	cl_sp_mutate_liquid_swap_visuals	Render the swapped liquid with the effective material (former water shows the lava texture). Requires cl_avfx 1 for the full enhanced look. Applies immediately.
Toggle	Swap AVFX contacts	cl_sp_mutate_liquid_swap_avfx	Make AVFX contacts follow the effective liquid: weapon/rain/snow on former water use lava effects (and vice versa). Requires cl_avfx 1. Applies immediately.
Toggle	Liquid swap debug	cl_sp_mutate_liquid_swap_debug	Print one diagnostic line when a liquid-swap cvar changes. For testing only. Applies immediately.
Navigation	Liquid swap info...	sv	Print liquid swap status: effective mode, gate, and toggles.

If you enable both directions, the original water becomes lava and the original lava becomes water, independently of each other.

7. Monster appearance variants

Appearance variants make repeated monsters look different: scale, tint, shape and asymmetry. This is also render-only, with no change to hitboxes, collision, behaviour, damage or pathing. Feet are kept on the floor, so a size change never looks like levitation.

Q2PRO-X / Single Player — Monster Appearance

Type	Section	Row	Variable or target	What it does
Section	Basics	Basics
Toggle	Basics	Enable monster variants	cl_sp_monster_variants	Master switch: makes repeated monster instances visibly different by size and color in local single player. No gameplay or hitbox changes. Applies immediately.
Slider	Basics	Variant seed	cl_sp_monster_variant_seed	Variation seed. Same map, seed and settings give the same visual layout; 0 reshuffles on every map load. Applies immediately.
Slider	Basics	Overall strength	cl_sp_monster_variant_strength	Overall strength of all variation. 0 disables variation; 100 uses the full configured range. Applies immediately.
Section	Size	Size
Toggle	Size	Auto size variation	cl_sp_monster_variant_auto_scale	Vary overall body size of each monster within the min/max range below, with feet kept planted on the floor. Applies immediately.
Slider	Size	Minimum model size	cl_sp_monster_variant_scale_min	Smallest monster size as a multiplier of original (0.85 = 85%). Extreme values are an experimental setting. Applies immediately.
Slider	Size	Maximum model size	cl_sp_monster_variant_scale_max	Largest monster size as a multiplier of original (1.20 = 120%). Extreme values are an experimental setting. Applies immediately.
Section	Color & shape	Color & shape
Slider	Color & shape	Color variation	cl_sp_monster_variant_color	How strongly monsters get tinted into different colors. Keep low to preserve readability; high values are stylized. Applies immediately.
Slider	Color & shape	Body shape variation	cl_sp_monster_variant_shape	Per-monster body proportion variation (torso/head/leg radial width). Render-only; no hitbox/collision changes. MD2 and MD5 monsters supported. Applies immediately.
Slider	Color & shape	Asymmetry	cl_sp_monster_variant_asymmetry	Mild left/right asymmetric lean per monster instance. Subtle by default; high values look obviously crooked. Applies immediately.
Section	Bosses & service	Bosses & service
Toggle	Bosses & service	Apply to bosses	cl_sp_monster_variant_apply_bosses	Also apply variants to boss-class monsters. Off by default because bosses are designed to look distinct already. Applies immediately.
Navigation	Bosses & service	Monster variants info...	sp_monster_variants_info	Print master state, gate reason, current seed, and per-frame / per-map classification counters.

8. Snakes and the Free World

AVFX wildlife genuinely participates in single player:

snakes interact with puddles, level water and grass: they create waves and a trail, part the grass and leave blood on the real surface;

in local single player, snakes can attack the player and monsters;

monsters notice snakes, attack them with ordinary weapons and answer a bite; armor, damage, the real contact distance and the physical path are all accounted for;

after a fight, monsters safely return to their ordinary goal.

The Free World mode lets idle monsters walk the level, hear events, work around obstacles and join fights in progress.

Those settings live in the AVFX wildlife pages; see the AVFX advanced features guide for details.

9. Mods

9.1. Scanning and launching

The mods menu scans local game folders. Native 64-bit mods launch directly.

Variable	Accepted values	Description
cl_q2prox_modscan	0=no scan (Mods menu shows only baseq2) / 1=scan mod folders (default)	Scan first-level mod folders at startup for a Quake II game DLL and cache the result, feeding the guided "Mods..." menu. For each folder it prefers a native 64-bit game DLL (gamex86_64.dll) and otherwise accepts a legacy 32-bit gamex86.dll, which the menu marks (bridge) since it runs through the Win64->Win32 bridge. The PE machine word is read off disk only (never LoadLibrary, never the bridge helper) and results are cached in baseq2/q2pro-x/mods_cache.dat with a size+mtime fast path so repeated startups don't rehash unchanged DLLs. 1 = scan on startup / when the Mods menu opens (default). 0 = no automatic scanning; the Mods menu then shows only baseq2 (local). Diagnostics: modscan_info, modscan_refresh. Archived in the global Q2PRO-X config.

9.2. The bridge for 32-bit mods

Legacy 32-bit game libraries are served by a helper executable:

baseq2\q2pro-x\utils\q2pro-x-bridge32.exe

That file is part of the release. It lives specifically in the utils subdirectory and is not in the root. If the bridge is missing, 32-bit mod support counts as broken packaging rather than a missing capability.

The modscan_info command prints the mods that were found, stating which launch path each one has: native 64-bit, or through the bridge.

9.3. Mod config profiles

Importable and custom configuration profiles are available for baseq2, OpenTDM and OpenFFA, with manual loading and an optional default assignment.

A profile is a temporary runtime layer. On a mod change the original state is restored, and the profile's contents are never written into the managed Q2PRO-X configs.

9.4. The mod command overlay

The overlay shows the current mod's commands right in the game.

Mod Command Overlay

Type	Section	Row	Variable or target	What it does
Section	Appearance	Appearance
Slider	Appearance	Opacity	cl_modhelp_alpha	Mod command overlay background opacity. Applies immediately.
Slider	Appearance	Text scale	cl_modhelp_scale	Overlay font / UI scale (0.1..2.0); 1.0 default. Applies immediately.
Toggle	Appearance	Compact mode	cl_modhelp_compact	Compact row layout so more command entries fit at once. Applies immediately.
Toggle	Appearance	Fullscreen	cl_modhelp_fullscreen	Expand the overlay to full screen instead of a compact pane. Applies immediately.
Toggle	Appearance	Show aliases	cl_modhelp_show_aliases	Show the aliases page (alternative names for commands). Applies immediately.
Section	Categories	Categories
Toggle	Categories	Show general	cl_modhelp_show_general	Show the general commands page (available to any connected player). Applies immediately.
Toggle	Categories	Show spectator	cl_modhelp_show_spectator	Show the spectator commands page (observer / chase-cam / scoreboard). Applies immediately.
Toggle	Categories	Show team	cl_modhelp_show_team	Show the team / captain commands page (join, captain actions, weapon drops). Applies immediately.
Toggle	Categories	Show stats	cl_modhelp_show_stats	Show the stats commands page (personal and match statistics). Applies immediately.
Toggle	Categories	Show voting	cl_modhelp_show_voting	Show the voting commands page (callvote / options / time left). Applies immediately.
Toggle	Categories	Show admin	cl_modhelp_show_admin	Show the admin commands page (server management). Applies immediately.
Section	Behavior	Behavior
List	Behavior	Overlay role	cl_modhelp_role	Role filter: auto detects from server state; the rest force a role view to preview its commands. Applies immediately. [auto / player / spectator / caster / captain / admin]
List	Behavior	Unavailable rows	cl_modhelp_unavailable	Commands unavailable in the current role: show / gray (dimmed) / hide. Applies immediately. [show / gray / hide]
Toggle	Behavior	Confirm dangerous	cl_modhelp_confirm_dangerous	Ask for inline confirmation before running dangerous commands (kickban, map reload). Applies immediately.
Toggle	Behavior	Prefer context page	cl_modhelp_prefer_context_page	On open, auto-pick the page matching your context (team/spectator/admin) instead of the last page. Applies immediately.
Section	Display	Display
Toggle	Display	Show row badges	cl_modhelp_show_badges	Show role / danger / category badges next to each command row. Applies immediately.
Toggle	Display	Keep last page	cl_modhelp_keep_page	Remember the last opened page across close/reopen this session. Applies immediately.
Toggle	Display	Show pinned first	cl_modhelp_show_pinned	Open the overlay on the pinned commands page first. Applies immediately.
Toggle	Display	Use local overrides	cl_modhelp_use_local	Prefer the local override database over server-provided help. Applies immediately.
Section	Actions & keys	Actions & keys
Navigation	Actions & keys	Toggle overlay...	modhelp_toggle	Toggle mod overlay on/off
Key	Actions & keys	Overlay toggle key	modhelp_toggle	Bind a key to toggle the mod-command overlay.
Key	Actions & keys	Search key	modhelp_search	Bind a key that focuses the overlay search box.

10. Practical recipes

Task	What to do
Play the campaign normally	Play offline → choose a skill
Practise on a duel map	Single-player training, then pick a map
Make a familiar map unfamiliar	The randomizer with seed 0
Repeat the same layout tomorrow	Set a non-zero seed and write it down
Change the look of a level without breaking it	Geometry deformation: it is visual only
Turn a level into hell	Swap water for lava — with real damage
Run an old 32-bit mod	The mods menu; the bridge engages by itself

11. What the experiments do not do

They do not work in an online match and do not affect anyone else's servers.

They do not modify the stock game library in baseq2.

Geometry deformation and monster appearance do not change collision, hitboxes, damage or behaviour.

The randomizer does not touch keys or story progression items.

Q2PRO-X 1.6 Beta 5 by ly — Q2PRO-X 1.6 Beta 5 Single Player and Mods Guide

Contents

An important safety model