What would Half-Life 2 have been like if we had gotten the version shown to us in the official promotional materials? Coterminus attempts to answer that question as well as provide a platform for others to make mods based on Half-Life 2 cut content.
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Town Mod for Coterminus
Singleplayer Map 5 commentsA ported and updated version of the Town mod previously released for the leaknet engine.
Coterminus Bullsquid with Leak Animations/Fixed Ragdoll
NPC ModelMakes the Bullsquid uses HL2 Beta animations instead of Half Life Source anims.
c17_01_13 Coterminus port!
Singleplayer Map 1 commentexactly as it says, I ported the 2001 map c17_01_13 to coterminus. (please let me know if there are any missing textures)
CoterminusRunningZombies
NPC ModelReplaces the walking sequences of both Coterminus zombie models with Zombine running animations. Idle animation is unaffected.
Wasteland_depot port to Coterminus
Singleplayer Map 2 commentsThe wasteland depot map from the 2001 version of the leak ported to Coterminus. (Made by VALVE)
VCC Citadel Contest Submissions
Singleplayer Map 1 commentHigh quality maps created by the community for Valve Cut Content's Citadel Contest.
Beyond the Bar One: Bringing Concept Art to Life
Singleplayer Map 7 commentsPart one of Beyond The Bar, a Half-Life 2 Beta themed mapping competition built on Coterminus.
d1_canals_end for coterminus
Singleplayer MapThis is the end of the canals chapter of the hl2 beta. this map may be unfinished and fullbright.
VCC Crap.vmf Contest Submissions
Singleplayer Map 3 commentsMaps created by the community for Valve Cut Content's Crap.vmf Contest.
n1_catacombs_01 port (w/ improvements)
Singleplayer MapA fan made beta map from the times of when the "Anon" build of the beta was leaked
C1A3 Port Remaster
Singleplayer Map(Load the map using console) A remaster of everyone's favorite test map from the HL2 beta. This also includes some dev talk for the map by me and some...
HL2 Survivor Assassin
NPC Model 2 commentsReplaces the female assassin model with a modified version of the Half-Life 2: Survivor female sniper.
d1_c43_01
Singleplayer MapMy own map in beta style. You can walk in one of streets of the City 43, that looks like City 17 in Pre-Pitch Era. 14.05.2023 Update: -Add d1_c43_02...
Peppino's Pizza
Singleplayer Map 3 commentsMap based on Pizza Tower intro. There are a Peppino's Pizza, small forest, Pizzahead's tower and sea.
Bullsquid01
Singleplayer Map 3 commentsThis is the bullsquid01 map that was in the wc mappack 2001. I fix it, add some details and enemies. You can drive a car with Tau Cannon. But,because...
Stalker Adjustments and Beta sounds for Coterminus (Plus Pre-2003 animations)
NPC SkinWhen I was playing the Borealis Mod for Coterminus for the first time I noticed that the Stalkers only walked and played the retail sounds and so I decided...
Quarry Hybrid for Coterminus
Singleplayer Map 3 commentsA simple map created for Coterminus, maded using three other maps.
Hazard01 Remake (Coterminus)
Singleplayer MapThe Iconic Hazard01 Test map By Marc Laidlaw, Remastered By me.
Half Life Xen (Xeno) Texture Port
Texture 2 commentsA simple Port of the xen (xeno) textures from Half life 1 into coterminus, although It can be used in other source games.
сoterminous buildingblocks
Singleplayer Map 2 commentsmap for coterminous where you can do whatever you want. My first published map, please do not judge strictly. Original map creator: JB55
Beta Shotgun World Model
Weapon ModelThis is simply a consistency addon that provides a more accurate world model for the leaked Shotgun model, as the current one resembles the retail shotgun...
Old d1_town_03 for Coterminus
Singleplayer Map 1 commentHybrid version of various WC mappack revisions of Ravenholm Church map, with various improvements.
Beta hands ai upscaled texture and bump mapping
Weapon ModelThese are improved restored textures of beta hev hands. This mod will only work with these addons - (project hydra total weapon conversion) or (beta hands...
Project Hydra Total Weapon Conversion
Model Pack 1 commentProject Hydra is an total weapon replacement for the mod Coterminus. Sending Gordon back to the past ready to roam the streets of C17 once again.
Borealis Mod for Coterminus
Singleplayer Map 6 commentsRevisit the classic lost chapter. Unlock the dark secret of the vessel "Borealis"... Updated version of the 2019 leak engine mod "Borealis". See the full...
JosephtheKP's Houndeye
NPC Model 1 commentJosephtheKP's accurate houndeye model remake for Coterminus
Improved leak canals map
Singleplayer Map 3 commentsThis map for coterminus is a ported and improved version of the beta map "canals_01_014".
Beta hands models for Coterminus v1.0
Weapon ModelThis package contains weapon models from the Coterminus mod, but with hand models from beta. The pack includes two versions of the hands - an oreginal...
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Popular Addons
Town Mod for Coterminus
Singleplayer Map 78.11mb
Borealis Mod for Coterminus
Singleplayer Map 102.04mb
Peppino's Pizza
Singleplayer Map 353.24kb
Beyond the Bar One: Bringing Concept Art to Life
Singleplayer Map 326.03mb
c17_01_13 Coterminus port!
Singleplayer Map 6.43mb
Improved leak canals map
Singleplayer Map 10.18mb
Hazard01 Remake (Coterminus)
Singleplayer Map 709.63kb
VCC Citadel Contest Submissions
Singleplayer Map 28.21mb
Wasteland_depot port to Coterminus
Singleplayer Map 5.34mb
d1_canals_end for coterminus
Singleplayer Map 510.32kb
Quarry Hybrid for Coterminus
Singleplayer Map 4.05mb
Old d1_town_03 for Coterminus
Singleplayer Map 27.88mb
Beta Shotgun World Model
Weapon Model 1.94mb
JosephtheKP's Houndeye
NPC Model 364.17kb
Beta hands ai upscaled texture and bump mapping
Weapon Model 10.67mb