When's the last time you played Ambrosia's Maelstrom? That's too long, and we are cruel enough to point out that you can fix that right now. This classic Mac OS Asteroids take was all the rage back in the day, and if you're looking for some old-school kicks, it's still a ton of fun. It was released under a GPL license some time ago, and from there it was ported OS X, Linux, BeOS, and Windows. We found that that the OS X download ran under Mountain Lion just fine. All of which means that you can once again while away a few hours, days, or weeks of your life. You're welcome.
Check It Out: Maelstrom 3.0, (Still) Free for OS X