X: Beyond the Frontier, X-Tension, X2: The Threat, and X3: Reunion (All in one key)
X3: Terran Conflict, X3: Albion Prelude, and X: Superbox Bonus Disk (All in one key)
Tropico 3, Sine Mora, SkyDrift, and Anna (All in one key)
Tropico 4, and Jagged Alliance: Back in Action (All in one key)
Supreme Commander, Supreme Commander: Forged Alliance, The Guild 2, and Red Faction: Armageddon (All in one key)
Painkiller: Hell & Damnation, ArcaniA, Darksiders II, and SpellForce 2: Faith in Destiny (All in one key)
Cities XL Platinum, Blood Bowl: Legendary Edition, Divinity II: Developer's Cut, R.A.W. Realms of Ancient War, Game of Thrones, and Confrontation (All in one key)
Wargame: European Escalation, and The Testament of Sherlock Holmes (All in one key)
Anodyne
Greed Corp
Incredipede
Ticket to Ride
Ticket to Ride 1910 USA DLC
The Bard's Tale
Worms Reloaded
DeathSpank, DeathSpank: Thongs of Virtue, and On the Rain-Slick Precipice of Darkness, Episode One (All in one key)
The Baconing, and On the Rain-Slick Precipice of Darkness, Episode Two (All in one key)
I got bundles from HumbleBundle
Offer here or add steam