rmapc is an efficient free map compiler for games using BSP files. Although influenced by id Software's quake map compiler, rmapc is developed from scratch and does not reuse code with similar utilities.
SoftWire was the precursor to TransGaming's SwiftAsm. SwiftAsm is an optimizing run-time x86 assembler that can be used as a JIT compiler back-end for scripting languages, or for dynamic code generation of efficient processing pipelines.