If you're looking for a completely free alternative, you might consider mobile-ported titles like available through Google Play Games on PC .
: Earn experience to level up and unlock new vehicles, scenarios, and upgrades. PC System Requirements Bus World PC Game Free Download
If you'd like, I can find the for a digital key or help you check if your specific PC hardware can handle the game's maximum settings. Bus World on Steam If you're looking for a completely free alternative,