Admittedly, some of the games I have keys for aren't the greatest, but there are a few decent ones in there. I'm fairly confident that none of these keys have been used, but I lost my original spreadsheet keeping track (in other words, if I send you a used key, I apologise!). The games I have up for grabs are as follows:

• Bridge Constructor Medieval
• Bridge Constructor Playground
• Bridge Constructor Stunts
• Monday Night Combat (x2)
• Rooks Keep
• Real Boxing
• Wooden Sen'SeY
• Hammerfight
• Air Guardians
• Cally's Caves 3
• Zoombinis
• Reverse Crawl
• A Plot Story
• Farmington Tales
• Witch's Pranks: Frog's Fortune Collector's Edition
• Dreamscapes: The Sandman - Premium Edition
• Sea Legends: Phantasmal Light Collector's Edition
• Namariel Legends: Iron Lord Premium Edition
• Kingdom of Aurelia: Mystery of the Poisoned Dagger
• Dreamscapes: Nightmare's Heir - Premium Edition
• Silver Tale
• Fall of the New Age Premium Edition
• Spirit of the Ancient Forest
• Robin's Island Adventure
• Taken Souls: Blood Ritual Collector's Edition
• Black Swan
• The First Templar - Steam Special Edition
• Shadowgate (2014)
• Northmark: Hour of the Wolf
• Inquisitor Deluxe Edition
• Middle-earth: Shadow of Mordor GOTY Edition

Phew, that's all of them. To enter, let me know which game/s you're interested in, and - for my own amusement - give me a quote from a Colkinom work. Sounds weird out of context, I know, but look it up :D (Best place to find quotes would be here: http://colkinom.wikia.com/wiki/Colki_Wiki)

Edit: I've picked a lot of the winners, but there's still a lot of games left. I've been judging based on the quotes, albeit with an element of randomness, so keep 'em coming.