FreeOrion

MMORPG EVE uses Python in its very core. Specifically variant called Stackless Python (http://www.stackless.com) Statistics: MMORPG Space game Client / server Single shard massive server 130.000 active players, >24.000 concurrent users World concurrency record on a shard 425,537 lines of Python code...

Well, it's literally what the subject line says

http://hubblesite.org/newscenter/newsde ... 01/image/a

Also there's sort of work that will make Python as fast or faster than low-level languages like C/C++. This is called PyPy http://codespeak.net/pypy/dist/pypy/doc/news.html If you are worried to speed of Python execution, you have several options - Use automatic Psycho JIT'ing. Hogs memory quite mu...

I am an experienced programming with a lot of background from different tools. I have seen games with modding and scripting options: - Ghost Recon, XML based files - Farcry, LUA scripting - Quake, Custom QuakeC - Doom, hardcoded switch loops :P - Unreal, UnrealScript, JavaScript style - Abuse, Lisp ...