Update

doom.md

@@ -15,7 +15,7 @@ Doom was followed by Doom II in 1995, which "content-wise" was basically just a
 Some **[interesting](interesting.md) things** about Doom:
 
 - Someone created a Doom system monitor for [Unix](unix.md) systems called [psDooM](psdoom.md) where the monsters in game are the operating system [processes](process.md) and killing the monsters kills the processes.
-- Someone (kgsws) has been [hacking](hacking.md) the ORIGINAL Doom engine in an impressive way WITHOUT modifying the source code or the binary, rather using [arbitrary code execution](arbitrary_code_execution.md) bug; he added very advanced features known from newer source ports, for example an improved 3D rendering algorithms allowing geometry above geometry etc. (see e.g. https://yt.artemislena.eu/watch?v=RdbRPNPUWlU).
+- Someone (kgsws) has been [hacking](hacking.md) the ORIGINAL Doom engine in an impressive way WITHOUT modifying the source code or the binary, rather using [arbitrary code execution](arbitrary_code_execution.md) bug; he added very advanced features known from newer source ports, for example an improved 3D rendering algorithms allowing geometry above geometry etc. (see e.g. https://yt.artemislena.eu/watch?v=RdbRPNPUWlU). It's called the Ace engine.
 - Doom sprites were made from photos of physical things: weapons are modified photos of toys, enemies were made from clay and then photographed from multiple angles (actually a great alternative to [3D modeling](3d_model.md) that's less dependent on computers and produces more realistic results).
 - TODO
 
@@ -38,6 +38,8 @@ There is no [antialiasing](antialiasing.md) in the engine, i.e. aliasing can be
 ## See Also
 
 - [Duke 3D](duke3d.md)
+- [Quake](quake.md)
 - [Jedi engine](jedi_engine.md)
 - [Build engine](build_engine.md)
+- [Chasm: The Rift](chasm_the_rift.md)
 - [raycasting](raycasting.md)