Add CatacombSDL.
"The Catacomb" is not a valid link to wikipedia anyway
Merge CatacombSDL
cavepacker
supertux
asc
CavePacker is not an exact clone though
Add OpenJK

OpenJK is based off the open sourced source code of the original JKA.
Added xBaK
add TVTower
Update games.yaml - Abuse has Lisp code too

Abuse has a Lisp interpreter and a lot of Lisp code under the /data directory, that handles things like AI, user interface, language and lightning.
Adds Missile Command
Add Mega Lo Mania
Add OpenOMF, a One Must Fall: 2097 clone
ioq3 repo
Merge remote-tracking branch 'origin/pr/78'
Merge remote-tracking branch 'origin/pr/79'
tvtower repo
Merge branch 'pr/80'
Merge pull request #81 from TeMPOraL/patch-1

Update games.yaml - Abuse has Lisp code too.