Yeah it's spewing out a bunch of various valgrind issues: Conditional jump or move depends on uninitialised value Mismatched free() / delete / delete [] Address 0x245c7100 is 0 bytes inside a block of size 512 alloc'd And ever some OpenGL errors: Mesa: User error: GL_INVALID_ENUM in glMatrixMode(mode) Seems like probably just a buggy game.