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Vampire: The Masquerade - Bloodlines

Vampire: The Masquerade - Bloodlines was developed by Troika Games and was released in 2004. It was one of the first Source engine games.

According to Michael Labbé of Threewave Software, Threewave Software assisted Troika Games with optimisations and bugfixes.

As the game was released before 64-bit operating systems were commonplace, it will not run on modern systems without some modifications: in engine.dll (the version that is 1986620 bytes in size) change 0x000FA494 (FA384 in v1.0) from 7D to EB (this fixes the game not correctly getting the amount of available RAM and exiting) and in shaderapidx9.dll change 0x000262CC from 75 to 90, change 0x000262CD from 0C to 90 and change 0x000262D4 from 04 to 7F (this fixes the game not correctly determining the amount of GPU memory and rendering with poor graphics settings).