Tideline is a metal detecting game for 1–4 players. Search an island for buried objects, dig them out, and carry them back to your cottage to sell.

Use the money to upgrade your equipment whenever you want. Each round lasts 10 minutes, then the holes are filled and new treasure is scattered. You keep your money and upgrades between rounds.

Find everything from bottle caps and old coins to guns, electronics, and jewellery. Complete your collection and beat your best round score.