Warlock's Gauntlet (looks like a "Gauntle" t style game , but with a wizard)
Warlock's Gauntlet is an Open-Source community project, created by users from warsztat.gd - a polish game development site known as Warsztat (the Workshop).
atm , there's no story , it's just for killing opponents :P
http://www.musztardasarepska.pl/wgdown/index.php?lang=en ----------------------------------------
Invaders corruption (arena shooter)
A free, procedurally generated arena-shooter where a seed-keyword, provided by the player, determines the appearance and flow of the game.
http://invaders.manuelvandyck.com/
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Notrium (survival game)
You have crash-landed on planet Notrium. Your food supplies are running low, a pack of predatory aliens have got your scent. There are no more bullets for your pistol, your only weapon a handful of rocks. The night is coming, and you are desperately looking for wood to make a fire. Notrium is a game of survival. Originally released in 2003.
http://www.instantkingdom.com/notrium ---------------------------------------
Magebane 2 (RPG)
Magebane 2 is a 3D strategic single player roleplaying game where you command three monks on a quest to recover the holy Amulet of Yendor. Each monk masters a different school of magic, and you must find a balance in upgrading your skills in order to defeat your numerous enemies. Also, you can find various items to enhance your abilities. You control your characters from zoomable bird's eye view, and you can give orders while the game is paused, or slow down the game to your liking.
http://www.instantkingdom.com/magebane/
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AVALANCHE (3rd person action game)
AVALANCHE is a third-person action game, set in the Final Fantasy VII universe, and featuring music from Final Fantasy VII: Voices of the Lifestream.
http://www.telefragged.com/thefatal/ava/
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Forgotten Kodama (Action / Adventure)
In the quest to recover the essence of the forest, Uzume is the hero is this tale of restoring the balance to nature, and destroying evil hoards of monsters and enemies.
http://www.forgottenkodama.com/
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Cardhalia (grid dungeon game)
Cardhalia is a grid-based dungeon game we created quite a long time ago now. As the game was very successful in those times in Czech Republic, we were asked to create an English version so it can be played by people who don’t know the Czech language. We decided to proceed this idea and hope that you will appreciate it.
http://www.say-realm.com/c1/index.html -----------------------------------------
The Button Affair (Action / Aventure ?)
The Button Affair is the story of Enzo Gabriel.His quest. To steal the priceless Button Jewel from the infinitely wealthy business tycoon
http://www.thebuttonaffair.com/
(note , even if the game is free as download the author ask a small donation (a bit more than 1€)