[jaen]

References for the Quake virtual machines:

Quake 1 had QuakeC: [1] https://en.wikipedia.org/wiki/QuakeC [2] Hello world in QuakeC - https://www.leonrische.me/pages/quakec_bytecode_hello_world....

Quake 2 moved to native binaries.

Quake 3 had a new VM that enabled compiling regular C using LCC: [1] https://fabiensanglard.net/quake3/qvm.php [2] Spec - https://www.icculus.org/~phaethon/q3mc/q3vm_specs.html

[0john]

Lua became pretty popular to use in other games for the purposes of scripting, but no surprises there I guess.

Lesser known- games using Havok Physics may have used Havok's MOPP (a bytecode and interpreter for partitioning and searching the geometry).

https://github.com/niftools/nifxml/wiki/Havok-MOPP-Data-form...