Thunder Powered

Hey guys, our website and teamspeak servers have transitioned to new hardware, and to celebrate I'd like to give away some free games. I was thinking that we could have a tournament or two in one of the many free games on Steam. Probably something like TF2 or Loadout, though the whole point of this post is to fish for suggestions. I have keys for about 25 games that the winners would get to choose from, I'm thinking 2 for first, 1 for second or something. Like I said, this is all just a concept at the moment. Let me know what you think, and let me know when would be the best time to do it. For starters, here is a list of the games I can give away:

AaaaaAAaaaAAAaaAAAAaAAAAA!!! for the Awesome
Amnesia: A Machine For Pigs
Batman™: Arkham Origins DLC
Breach & Clear
Broken Sword: Director's Cut Steam key
Brütal Legend Steam Key
Crayon Physics Deluxe
Crusader Kings II
DEFCON, Multiwinia, Darwinia, and Uplink Steam key
Deponia
FEZ
Fieldrunners
Frozen Synapse
Frozen Synapse Multiplayer Key
GRID™
Half Minute Hero: Super Mega Neo Climax Ultimate Boy
Jazzpunk
KickBeat Steam Edition
Legend of Grimrock
Little Inferno
Monaco: What's Yours Is Mine
Monaco: What's Yours Is Mine
Multimedia Fusion 2 Registration Key
Multiwinia Multiplayer Key
Nightsky Steam key
Orcs Must Die! 2: Complete Pack
Pitiri 1977
Quest of Dungeons
Red Faction: Armageddon Steam Key
Shank 2
Skulls of the Shogun
Small World 2 Royal Bonus DLC
Solar 2
SpaceChem
Splice Steam Key
Superbrothers: Sword & Sworcery EP Steam Key
Surgeon Simulator 2013
Terraria
The Binding of Isaac + Wrath of the Lamb DLC
The Sims 3 Date Night Key
The Sims 3 High End Loft Stuff Key
The Sims 3 Key
The Sims 3 Late Night Key
The Swapper
Thomas Was Alone
To the Moon
Waking Mars Steam key

There are a few others, if you look at my Steam inventory (mixma).