This edition of Weekend Download happens to be Weekend Download number 101! That means we've featured roughly 400 games since February 2007! Exclamation mark! To celebrate, today's article features five free games, enough to keep you busy for hours on end. It also features an extra amount of love, but if you've been following WD since the beginning, you knew that already, didn't you? AWWWW!!!!

Paul Moose In Space World (Windows, 18.8MB, free) - A short adventure game with visuals created using pencil and crayon drawings on paper! Add a little programming, some dialogue, a little music and a few puzzles and you've got yourself a game! Paul Moose has been searching for aliens for five years sitting in his lonely little space cabin. One day something happens, though, and now it's time to head to the main deck to see what's there! The game has a few glitches here and there, but nothing that will spoil your enjoyment of this creative title.

Solar Plexus (Windows, 11.9MB, free) - An unfinished (and considered abandoned) project by Noitu Love creator Konjak. Solar Plexus is a gorgeous platformer with ledge grabbing, lots of shooting, and mouse-driven, block-based puzzles. There are only nine levels to play, but as with Konjak's other abandoned project, Ivory Springs, you'll be glad you played it.

Onslaught of the Electric Zombies (Windows, 1.6MB, free) - A puzzle game that resembles Minesweeper on the surface, but if you think about it, it's really a super-simplified roguelike RPG. Move through the grid uncovering tiles with the [arrow] keys or your mouse. Most squares are harmless and net you a few points, but soon you'll find numbered "danger" tiles that point to monsters nearby. Fighting monsters takes away some of your energy but earns you points, so, unlike stepping on a mine, you kind of want to uncover these baddies. You'll also find items and random events that can help or hurt your situation. A unique idea that's showing a lot of promise in this still-in-development title.

Rock Warrior (Windows, 2.3MB, free) - A Ludum Dare 15 entry that's all about digging and harvesting gold. Navigate your blob-like ship with the [arrow] keys, digging into the liquid-like soil by gently nudging against it. Gather all the gold to win, but avoid that nasty seeping lava. It's bad. Not quite as addictive as I Dig It, but it still calls you back for more.

Cave Bounce (Windows, 1.9MB, free) - Another entry in Ludum Dare 15, Cave Bounce is a simple action game with a fun premise. Your only goal is to collect coins and move to the next screen, but in order to get them all, you must toggle between two depths, allowing you to bounce on platforms that were formerly in the background. Tap the [z] key to switch the third axis, and keep in mind you can do this even while flying through the air!

Note: All games have been confirmed to run under Windows Vista and are virus-free. Mac users should try Boot Camp, Parallels, or CrossOver Games to play Windows titles, Linux users can use Wine. If you know of a great game we should feature, use the Submit link above to send it in!