Solve crossword puzzles to attract fish to your location. After every 10 puzzles, complete a fishing minigame by hammering the space bar. You never catch the fish
Idle game. You can only log in once a week. You are presented with two buttons: Lay Trap and Shop. Once a trap is laid, you must leave until you can log back in and see how many crabs you got. The shop offers cosmetic skins for your crab trap for "Crab Tokens" which can be bought with real money.
Sandbox aquarium game. Collect hundreds of randomly-generated fish in your randomly-generated aquarium. Collect fish thru gacha/gambling mechanic -- randomized, $1.01 per spin.
VR Walking simulator where you walk down an endless shoreline, examining fish. Once you've examined 10 fish, the screen goes black and says: "Now do it in real life!" and deletes itself from your PC. To add new fish to the game, one must encounter them in real life, print and tape a QR code to its body, and upload a picture.
First person fishing simulator (super accurate like ARMA 3 or Microsoft Flight Simulator.) In order to advance at all, you must be PIXEL PERFECT and detect OFF-SCREEN FISH. There is no anti-cheat.