Simutrans, one of the major open source rail games, gets an update with version 0.99.13 - bug fixes and optimizations are the topic of the day here and with large speed ups for vehicle routing and map scrolling the game should have a nicer feel.
Open Arena ends an 8 month barren spell of releases with 0.7.0 which comes with 10 new player models and 26 new maps. Open Arena looked like a struggling project a year ago but now it is thriving and a worthy Free replacement for the proprietary Quake 3 content.
Regular readers may know that I'm not big on posting web games (this is an open source games blog after all) but I found this one rather stylish. I bizzarely encountered it on a blog about room escape games that I found whilst cleaning up my bookmarks. I don't think there's a worse genre of game than room escape games. Every time I play one I end up feeling suicidal. Well, ok, not that bad but I can't see how somebody can enjoy just clicking randomly until something lands in your inventory and eventually you can leave a room - it's like focusing the worst aspect of adventure games. Who would repeatedly subject themselves to such torture?