1km1kt
4c-system
action
adventure-squad-core
all-rights-reserved
amagi-games
a-metahuman-city
anime
apocalypse
apocalypse-world
apocalypse-world-system
arr
arredondo
a-strange-charm
a-world-of-wonder
ben-wright
berengad-games
blah
board-game
bully-pulpit-games
by
by-nc
by-nc-nd
by-nc-sa
by-sa
by-sa-nc
card-game
cards
?category
chris-gonnerman
chris-sakkas
city-states-of-the-gods
closed
commercial
crn-games
d100-system
d101-games
d20-game
d20-system
d6-system
designer
discipline
domino-games
domino-writing
donjon
doublezero
dungeon
dungeons-dragons
dungeon-squad
dungeon-squad-game
dungeon-world
engine
evil-hat
fal
fantasy
faserip
fate
fdl
feng-shui
flavour
fld
for-closed-game
fossil-bank
free
free-wargames-rules
?game
game
genreless
ghost-echo
goblinoid-games
gosh
gpl
gratis
greek
greg-stolze
historical
historical-or-modern
horror
humour
jeff-moore
lady-blackbird
larp
?licence
licence
licence-unclear
link-broken
list
loa
marquee-press
mecha
microlite20
miniatures-game
modern
mystery
no-desc
no-details
no-pub
not-english
ocl
ogc
ogl
one-seven-design-studio
open
opl
oracle
osh
otherkind-dice
own-licence
piecepack
post-apoc
public-domain
?publisher
publisher
redbox-hack
redbox-hack-engine
reign
resource
retroclone
revolucion
risus
risus-engine
rivers-and-lakes
robot
romance
ronin-arts
rpg
sage-latorra
sci-fi
setting
sf
single-page-setting
solitaire
sorcerer
srd
steampunk
stories-you-play
story-game
storystory
stuart-chaplin
style
supers
supplement
suspense
teapot-dome-games
tgh-setting
the-great-hundred
the-impossible-dream
the-simple-game-system
type
unclebear-media
universal
valent-games
vincent-baker
vintyri-project
warrior-wizard
wizards-of-the-coast
work