Games like Idle Swimmers
Games like Idle Swimmers include Cornerpond, Cast n Chill, Tiny Pasture, Fish to Dish: Idle Sushi, and Digseum. We matched them by the tags players give Idle Swimmers on Steam (Idler, Fishing, Relaxing, Casual, and Incremental): closest matches first, and among equally close ones the better-known games.

Cornerpond
Shared: Idler · Fishing · Desktop Companion

Cast n Chill
Shared: Fishing · Relaxing · Idler

Tiny Pasture
Shared: Idler · Incremental · Casual

Fish to Dish: Idle Sushi
Shared: Idler · Fishing · Desktop Companion

Digseum
Shared: Idler · Casual · Incremental

Shelldiver
Shared: Casual · Incremental · Idler

DAVE THE DIVER
Shared: Casual · Relaxing · Pixel Graphics

Click the Button
Shared: Idler · Casual · Incremental

Cookie Clicker
Shared: Idler · Incremental · Casual

Chillquarium
Shared: Idler · Fishing · Incremental

Nodebuster
Shared: Idler · Casual · Incremental

Spirit City: Lofi Sessions
Shared: Relaxing · Desktop Companion · Idler

Fishing Inc
Shared: Relaxing · Fishing · Casual

Rusty's Retirement
Shared: Idler · Desktop Companion · Relaxing

Click and Conquer
Shared: Idler · Casual · Incremental

WEBFISHING
Shared: Fishing · Casual · Character Customization

Maltese's Fluffy Onsen
Shared: Desktop Companion · Idler · Pixel Graphics

Ropuka's Idle Island
Shared: Idler · Relaxing · Desktop Companion

Fortune Mill
Shared: Idler · Incremental · Pixel Graphics

Fantasy Aquarium
Shared: Idler · Casual · Relaxing

Birdwatching Notebook
Shared: Idler · Casual · Desktop Companion

Joyquarium
Shared: Idler · Fishing · Relaxing

How to Train Your Cock
Shared: Idler · Relaxing · Casual

Incredicer
Shared: Idler · Incremental · Casual