Pootle

So, am just asking around for some help - am setting up an open source 3D game engine for android. What license should we use? Thought we'd go with something like BSD or maybe GPL/LGPL, but getting confused about it. Want a license that lets developers make commercial games, but still want the keep the engine - and future versions of it - as open as possible. Advice gratefully received!

gorn

Basically, BSD means that anyone can do whatever they want with the code as long as they acknowledge you. This means a company could use your engine for their commercial game, and make many improvements to the engine, that they either give back to you, or keep for themselves.
LGPL means they can link to your engine and have their code closed source, but if they modify the engine their modifications must fall under the LGPL too.
GPL means anything linking to the library must also be GPL.

It sounds like LGPL would be the best fit for you. But you should probably read over the text of it a bit more to make sure you're comfortable with it.