Of course I would like to nominate my two freeware releases in 2012!
subAtomicsubAtomic won the Humour category of the 23rd Ludum Dare Jam, was featured on IndieGames.com, and was the AGS Pick of the Month in May!

A dysfunctional family are miniaturised in their misguided search for a holiday, thanks to the scientific minds at S.H.A.T. (Space Holidays via Accelerated Transport).
Features:
* Visceral point-and-click action!
* Literally tens of hilarious jokes.
* Experience the beginning, middle, and end of a story. The decisions you make will completely shape your experience and the final outcome of the game.
* The lack of a save-game feature means your actions have real-world consequences.
* Witness the epic development of more than one character as you control some of their actions.
* subAtomic plunges you into the scene at the deep end, with more than 10 different, immersive sound effects!
* A rousing, all-original musical score.
* Features unofficial cameo appearances by Albert Einstein and Carl Sagan!
subAtomic is available for download from the AGS Database.
Plan MPlan M won the Humour category of the 24th Ludum Dare Jam, and was featured on IndieGames.com and Rock, Paper, Shotgun!

The evil Dr. M has used a nefarious machine to devolve everyone back into monkeys, so he can become their master!
Fortunately, he didn't count on Detectives Vandall and Hopkirk - two survivors who will stop at nothing to put things back the way they were.
* Full-length point & click adventure!
* A story so packed with comedy it's liable to explode at any minute, covering you and anyone watching in a disgusting-yet-amusing goo!
* Stephen Hawking gives a conference from the ceiling!
* Meet a monkey pretending to be the president!
* Electrocute a small child!
* And much, much more!
The Enhanced Edition includes a soundtrack and audio effects, as well as several re-written and completely new scenes.
Plan M is available for download from the AGS Database.