BSP Support

BSP Support

This is an overview of which versions of the BSP map file format the Chaos engine can launch. Some formats can be converted to a supported version by manipulating the raw binary data, while others would need decompilation with an appropriate tool, which might break certain properties without manual intervention.

Furthermore, it's not guaranteed that every format that is listed as supported works 100% since there might still be game-specific incompatiblities.

Source 2 is not supported at all as its formats aren't documented and completely different from what's supported in Source.

For more details, see the Valve Developer Wiki page.

Engine	Version(s)	Games	Supported	Planned	Details
IdTech	Any	Quake 1/2/3	No	No	Too different from modern Source
GoldSrc	Any	Half-Life, Team Fortress Classic, CS 1.6	No	No	Too different. It's possible to decompile, and then recompile for Source
Source	≤18	Vampire: the Masquerade, very old HL2	Untested	No	Might work with manual binary editing
Source	19-20	HL2, TF2, CSS	Yes	-	Fully supported
Source	20	GMod, L4D, Black Mesa	Yes	-	Map loads, parts might be broken due to missing shaders/scripting, etc.
Source	21	Portal 2, CSGO, Alien Swarm, any Chaos VBSP compiled maps	Yes	-	Natively supported, preferred for any Chaos game
Source	21	Left 4 Dead 2	No	Probably not	Can be fixed by swapping entries in lump headers around, see link above
Source	≥22	pre-Reborn Dota 2, Contagion, any Respawn Source games	No	No	Too many undocumented differences to make it worth