It's easy to start getting complacent with all the high quality titles coming out of the indie space right now, but even so there is the occasional game that really stands out above the rest for whatever reason, and RetroBooster by ReallySlick is just one of those games. I grew up on gravity lander-thruster games on the Apple II and C64, such as space taxi, thrust, lunar lander to eventually Exile on Amiga and often found myself frustrated with the difficulty but ultimately satisfied with getting the result. So RetroBooster looks like a welcome breath of fresh air since no seems to be making hard-as-nails gravity games any more as developer Terry Welsh commits his lovely OpenGL particle effects experience from Really Slick Screensavers into a beautiful gravity-cave-thruster-explorer-shmup (whew!)