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lynndotpy 2 hours ago

Absolutely, the first versions until idTech 5 were open source and a number of important engines, like Source, derive from it.

Wikipedia actually has a family tree that's broader than I remembered: https://upload.wikimedia.org/wikipedia/commons/8/85/Quake_-_...

The CoD series, Source games (Half Life, Portal, Left 4 Dead), Titanfall, etc.

markus_zhang 15 minutes ago | parent | next [-]

Machine games and Arkane studio use IDtech.

nottorp an hour ago | parent | prev | next [-]

> the first versions until idTech 5 were open source and a number of important engines, like Source, derive from it

Huh? They were made open source when they were obsolete, Valve did license ID IP for the first Half Life but they paid for it. And that evolved indeed in Source.

vintermann 2 hours ago | parent | prev | next [-]

Very interesting tree. Today I learned that the engine we used in college classes, ACKNEX, actually wasn't an idtech derivative. I could have sworn.

Catloafdev 2 hours ago | parent | prev [-]

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