Nova Pinball
May 28, 2017 - v0.2.3.01Game/ArcadeGame
NPRQuake
Oct 30, 2014 - v0.0.1.02Game/ActionGame
NXEngine-evo
Unrated.
Apr 9, 2020 - v2.6.4.01Game/ActionGame
OGS Mahjong
Sep 26, 2015 - v1.1.0.01Game/BoardGame
Oolite
Nov 12, 2017 - v1.86.0.19Game/Simulation
Open Arena
Jul 11, 2015 - v0.8.8.05Game/ActionGame
Open City
Jan 2, 2015 - v0.6.4.01Game/StrategyGame
Open Fodder
Feb 17, 2017 - v1.3.1.05Game/StrategyGame
Open Hexagon
Oct 22, 2014 - v2.0.0.02Game/ArcadeGame
Open Notrium
Sep 9, 2016 - v1.0.0.03Game/ActionGame
OpenGGS
Dec 14, 2015 - v0.168.0.01Game/ArcadeGame
OpenLara
Dec 9, 2018 - v0.3.0.06Game/ActionGame
OpenRA
Oct 20, 2017 - v1.0.0.05Game/StrategyGame
OpenYahtzee
Nov 18, 2012 - v1.9.0.02Game/BoardGame
Opsu!
Oct 23, 2017 - v0.16.0.11Game/ActionGame
Organica (scene Intro)
Jun 5, 2016 - v1.0.0.2AudioVideo/Player
Origami (scene intro)
Apr 23, 2016 - v1.0.0.2AudioVideo/Player
Otho Robot
Jun 2, 2014 - v1.0.0.01Game/LogicGame
Otter browser
Jul 21, 2017 - v0.9.91.22Network/WebBrowser
Otto Matic
Oct 1, 2022 - v4.0.0.01Game/ActionGame
Out of Order
Sep 29, 2015 - v1.0.0.01Game/AdventureGame
Pacman
Apr 24, 2016 - v0.9.0.02Game/ArcadeGame
Pacman Arena
Jun 22, 2019 - v0.0.15.01Game/ArcadeGame
Pale Moon
Mar 17, 2018 - v27.8.1.33Network/WebBrowser
Pandora Crude Bench
Jun 26, 2013 - v0.1.0.02Utility