Anyone running OMSI 2 with large maps, extensive bus packages, lots of AI vehicles and high-resolution textures should at least know about one small utility: the 4GB Patch by NTCore. Our recommendation is straightforward: if you run OMSI 2 on a modern 64-bit Windows installation, it is worth checking whether the patch has already been applied.
Despite its name, it does not give your PC another four gigabytes of physical memory, nor does it turn OMSI 2 into a 64-bit application. Instead, it changes a property of the executable so that the 32-bit application can access a larger virtual address space on a suitable 64-bit system.