We’re doing a senior class project in Blender.
One of my team mates built a game, but it’s got a few issues:
I’m not as experienced in the game engine as I am with other parts of Blender.
Any possible resources, fixes, or help is appreciated.
File size
There’s lots of duplicate mesh data (which explains why it compresses so well)
Mesh data can be linked by using Alt+D instead of Shift+D
Framerate
I don’t really have an authoritative answer for this, but the rasterizer seems to be eating quite a bit.
Some obvious solutions:
-lower the object detail
-decrease the amount of objects
Crashing
I managed to get a crash with the official 2.65a. My debug build is very much old and broken and I need to sleep :[
Hopefully someone can provide a better answer.
Way to many keyframes.
I deleted them all and saved about 200MB space.
Instantiate same objects instead of duplication.
Reuse keyframe-sets for similar objects.
1.Laptops are not designed for gaming and game dev> don’t expect super framerates.
2.Its quite incorrect to call a game engine unoptimized > the game made on it is unoptimized.
3.Tell your friend to put up more time on optimizing .
runs 30 FPS on my Nvidia 8600GT, which is pretty old (2007). And it can handle 20-60 zombies running at you at 60 FPS 
Also, on older pc, putting an occlude around camera may help a bit to increase framerate.
Keep optimising
Okay, update : we deleted all the keyframe /action data - that cleaned up the file quite a bit. we also linked the objects to the same object data.It shrunk from 256 Mb to about 10 or 20 mb