Here’s a quick review of Contraband Police (the “free” likely refers to a free demo, a promotional period, or a cracked version—since the full game is normally paid on Steam).
If you meant a specific “Contraband Police Free” app on mobile or a browser game, that’s likely an unofficial clone. The real Contraband Police is a paid PC game (often on sale for ~$10–15).
A simulation game where you play a border checkpoint inspector in a fictional 1980s communist country. Your job: check documents, search vehicles, and find smuggled goods.
