I’ve been working on this game that became 60000kb. I need it to be 20000kb. At the moment it is around 43000 kb(zipped compressed). Any suggestions?
go down on the texture size? that actually takes a lot of space, and be sure you are not having doble textures, i once have a problem like that, and it was because i packed the texture files in the blend file and also have them standalone in a directory of the game.
Also, try open the texture files in photoshop or something similar and check de DPI´s. some software´s work on 150 or 300 dpi that you dont need for game texture, try changing them to 72 dpi (screen view) and it may go down a lot, but lots of mb.
If those are not the problem, im out of ideas, but there are some very expert guys here in the forum that for certain will point out some other things.
Meshes eat a lot of space (check number of vertices, vertex group etc.).
Actions eat a lot of space too (ensure to remove unnecessary keyframes from any channel).
Remove obsolete data from your files (data that is still present but no is not used).
Replace duplicated data with linked data.
I noticed that appending a scene to another new blend file reduces the files size too. I have no idea why.