Haha, I was going to suggest Recettear, but everyone else beat me to it! Iām going to go ahead and also recommend a game by the same company
Fortune Summoner: A side scrolling Fantasy Adventure/Action game by the makers of Recettear. It boasts cute characters once more and this time features some platforming and fantasy fighting action. The main heroine is on a hunt for magical powers and enlists the powers of her friends (which can be swapped around to access different magical abilities). The price point is $20 on Steam, though with Steam, youāre guaranteed a sale eventually.
Beat Hazard: Space shooter reminiscent of asteroids, but with about 1000% more epileptic seizure causing flashes (seriously, do not play this game if prone to epiliptic seizures, this will do it). Barring that, this is a very fun space shooter that takes your music (or whatever audio you want to use) and makes a level out of it. The ultra version includes upgrades to give more weapons to your ship to help you last through those long songs (I played through AMV Hell 3, 2 hours of constantly changing momentum due to different songs and volume).
Croixleur: This place really made me think of them because they are in a similar boat with Game Dev Tycoon. Cheap price, simple game premise, indie, and currently on Steam Greenlight. It is a hack and slash game that is similar to the horde modes of other games. You control the swordwoman Luc as she goes through a ritual trial by battling waves of monsters. Throughout the dungeon, you collect swords, each with their own unique special attack that you can chain together with each other to create devestating combos (you can carry a max of 4 swords at a time, but there are about 12 in the game). The game also sports a survival mode that really puts your skills to the test.
Shira Oka: Second Chances: Okay this is a much older game than some of the other stuff Iām mentioning, but it isnāt well known, and a fun game for those of you who like Visual Novel style games. Shira Oka is your usual high school romance visual novel game about finding the love of your lifeā¦but with time travel. Youāre sent back in time by an angel because you ended up lonely and a bum all grown up. So now youāre going to change your fate. As you progress through the school year (in which you must maintain your grades while dating various girls) youāll go through random events and make choices. Once your game ends though, it just reverts. Any ending causes you to be returned back to the start of the school year due to the angelās powers, but you retain memories and they can influence your game, which gives it interesting replayability. The game is kinda long and tedious though, unlike other VNs.
Poker Night 2 and itās predecessor, Poker Night at the Inventory: Okay, this is NOT an indie game, but it might not be as well known as I would like. Poker Night is what happens when you take 4-5 characters from different video games/tv shows/web series and put them in a room together to play Texas Hold em. Hilarity ensues. The real gameplay isnāt at all about winning card games, but more about seeing the funny interactions between the characters. Both games are $5 each on Steam and come with TF2 items (and the second one comes with Borderlands 2 items).