A few suggestions

[Aquillion]

Glumbuster, a... strange game. It's hard to describe. Sort of sidescrolling-flying in a surreal environment. But very interesting.

The Cleaner, sort of similar to the above, where you play a mage traveling between worlds.

Masjin, a sort of side-view team-fortress-ish game.

Liberation Army, a freeware game by Kou, with a translation patch here, reviewed here. The game itself (which will need to be patched) can be found here.

Fanta Scape, a sort of free-roaming strategy-RPG game where you form a team and send them to fight monsters.

Orbital Sniper, a game where you're tasked to defend VIPs from assassins... by firing at them with a railgun from an orbital satellite.

Bay 12 Games has a Free Games Thread, though I'm sure others have mentioned it.

[i_like_c]

Reported

[Aquillion]

They're, er. They're game suggestions, for Tiggit! Not spam.

[i_like_c]

Not your post there was a spampost its already deleted