Sometimes indie game developers really impress me with their rampant creativity. This week, for example, we have a surprisingly deep strategy game from Chronic Logic that looks like it was stolen from 1992 (which is good!), a fighting game starring rabbits, an unfairly tough platformer called Love, and a physics-based racing motocross racing game. When "Hey, I have a neat idea!" is the driving force behind a game, you know you're in for a good time.
X-Moto (Mac/Windows/Linux, 24MB, free) - Perhaps a distant cousin to Line Rider, X-Moto is an open source 2D motocross platform racing game with a heavy emphasis on physics. Use the [left] and [right] arrow keys to lean and the [up] key to move forward, then try and make it through the countless user-generated tracks available online. Keep your head from crashing into the ground and you should do all right!
Zatikon (Mac/Windows/Linux, 27MB, demo) - A superb turn-based strategy title from Chronic Logic, Zatikon takes place on a 2D grid where units move, attack and defend much like a complex game of chess. Build your army before diving in, choosing from around 50 units (not all of which are available from the get-go) that range from long-firing archers, close-combat warriors, and tons of extremely creative characters with interesting special abilities. Then, head out onto the battlefield and lay siege to your opponent's castle. Single player versus the computer is available, along with player versus player and co-op play. I'm not afraid to admit I a lot of fun playing this game. It's easy to pick up and very addictive, especially when you start earning gold and get to unlock new army units (shapeshifters for the win!).
Love (Windows, 30MB, free) - Do you like tough-as-nails platform games that punish you at every turn? The not-so-aptly-named Love is just that. You have 99 lives to run through 20 levels of spikes, pixel-accurate jumps, and dastardly traps springing out of nowhere. Memorization and trial-and-error are your only friends.
Lugaru (Mac/Windows/Linux, 25MB, demo) - A third-person action game centered around one thing: awesome-looking combat. The main character, Turner, is on a quest to find those responsible for killing people in his village. He quickly uncovers a far-reaching conspiracy, however, and takes it upon himself to fight against evil to save his fellow rabbits from slavery. Instead of forcing tons of battle commands onto the player, Lugaru uses a smart context-sensitive mechanic that allows you to pull off some spectacular moves. Even if combat isn't your thing, you can be all stealthy, too. Just be smart about it.