Free games released in 2005
Help Free Games Utopia
Free Games Utopia is a completely free one-person project. If you wish to help, you can donate a few bucks. Thank you!

Battle for Wesnoth
strategy / turn-based tactics
David White

Dark Horizons Lore: Invasion
simulation / first-person shooter
GarageGames

Cave Story
platformer / metroidvania
Studio Pixel

Maniac Mansion Mania - Episode 1: Sibling love
adventure / point & click
LucasFan Games

Imperia Online
strategy / MMORTS
Imperia Online Ltd.

Adventures in the Galaxy of Fantabulous Wonderment
adventure / point & click
Ben 'Yahtzee' Croshaw

Guardian of Paradise
RPG / JRPG
Buster

1213
platformer
Ben 'Yahtzee' Croshaw

Baseball Mogul 2006
simulation / management
Sports Mogul

3059: The Beginning
RPG / roguelike
Phr00t

Inaria Original
RPG / old school RPG
Viridian Games

Façade
adventure / visual novel
Procedural Arts

Cabal Online
RPG / MMORPG
ESTsoft Corp

Psi-Ops: The Mindgate Conspiracy
shooter / first-person shooter
Midway Games

Boundless Ocean
RPG / JRPG
RPGCreations

Dark Oberon
strategy / real-time strategy
Charles University in Prague

Robocop 2D 2: Robocop vs Terminator
shooter / run and gun
Park Productions