- Starbound is a "2D space exploration sandbox game" that actually has a story and main goals to accomplish (if you want)!
- Contagion is a "cooperative survival horror FPS where players are forced to watch their ammo and aim carefully otherwise be overrun by the zombie hordes." The game is also randomly generated, but your fear won't be!
- I've heard a lot about Kerbal Space Program in the past, and was always curious, but now that it's #3 highest voted I'll definitely have to check it out! KSP is a "multi-genre game where the player can create his own space program, [... and] build a space-worthy craft capable of flying it's crew out into space without killing them
- Space Engineers is "a sandbox game about engineering, construction and maintenance of space works. Players build space ships and space stations of various sizes and utilization (civil and military), pilot ships and perform asteroid mining."
- The Stanley Parable is another game I've heard quite a bit about, and it's probably the one I know the least about after reading the pages! From the IndieDB page: "The Stanley Parable is a simple game about storytelling. You will be told a story and then you will be asked to make a choice, except that the choice will not matter. No, sorry, my mistake, the choice matters a great deal. Or maybe...is it that the story doesn't matter? Wait, let me check my notes..."
- Into the Dark is, succinctly enough, "a playable B-Movie, a trash Experience composed out of 60% humour, 30% horror and 10% technical flaws."
- Path of Exile is the first action/RPG on the list and it's free to play! It involves a slew of character customization as well as PvP.
- Tales of Maj'Eyal is another RPG, but this one is a roguelike that also happened to win Roguelike of the Year 2010-2012!
- Outlast is another horror game, this one takes place in Mount Massive Asylum, which sounds like a combination of two creepy things!
- Rogue Legacy rounds it all up, and it's a "genealogical roguelite." I can't pick just one sentence to copy since it's so well written, but here's from the developers: "You must traverse a procedurally-generated castle to uncover the secrets of your cursed heritage. You have only one chance though, as there is no redemption from death. Fortunately your lineage spawns like bunny rabbits, and there are plenty of successors willing to pick up the sword. Unfortunately genetics aren't a perfect science, resulting in children who suffer from a variety of different traits, such as blindness, dyslexia, and even irritable bowels syndrome. Do you have what it takes to uncover your family's history and redeem its honor?"
There were also Editor's Choice awards, all of which were for games not listed above except for Rogue Legacy, which placed #1 overall and "Best Singleplayer Game". And if you're wanting to know what awesomeness is being made as you read this, there's also a "Best Upcoming Indie Games" section.
Which game are you most excited for? I'd thrown a concept around in my head before similar to Rogue Legacy, but coming up with the basic concept and carrying it out to awesome completion are two totally different things!