Courtesy of the indiegames.com weblog, the top 10 indie games of 2010 in a variety of categories:

• Freeware Experimental Games (previously)
• Freeware Shoot 'em Ups
• Freeware Role-Playing Games
• Freeware Puzzle Games
• Freeware Adventure Games
• Browser Arcade Games
• Freeware Arcade Games
• Browser Platformers
• Top 10 Indie Games (overall, including ones that *gasp* actually cost money)
• Indie Games To Watch Out For In 2011

posted by juv3nal on Jan 14, 2011 - 27 comments

GENETOS is the history of Shoot-em-ups in a single game. Take on everything ranging from Space Invaders-like aliens to 21st Century bullet hell. Power up your craft (by collecting green and blue bits and blobs) with innovations like slow-motion, super bombs, lock-on lasers, and the ability to move vertically. (Windows only) [more inside]
posted by CrunchyFrog on May 2, 2010 - 10 comments

Hell is Other People [more inside]
posted by flatluigi on Oct 19, 2009 - 61 comments

Pixelvader = minimal vector graphics bullet hell shmup flash game with upgrading system.
posted by juv3nal on Jul 28, 2009 - 19 comments

Alien Breed + arena shooter + online highscores = Alien Deathmatch 2. Windows only.
posted by pancreas on Dec 18, 2008 - 7 comments

After playing Areas, I now feel the world needs more no-click ambient shmups. [via] [more inside]
posted by Plutor on Dec 28, 2007 - 29 comments

GridWars 2 is superlative shooty thing for Windows; download here.
posted by riotgrrl69 on Sep 7, 2006 - 26 comments