Games like Salt and Sails
Games like Salt and Sails include Cat Goes Fishing, DAVE THE DIVER, Hitler is my crush, Huntdown, and METAL SLUG. We matched them by the tags players give Salt and Sails on Steam (Side Scroller, Shoot 'Em Up, Third-Person Shooter, Sailing, and Fishing): closest matches first, and among equally close ones the better-known games.

Cat Goes Fishing
Shared: Fishing · 2D · Sailing

DAVE THE DIVER
Shared: Fishing · Relaxing · Underwater

Hitler is my crush
Shared: Side Scroller · Shoot 'Em Up · Third-Person Shooter

Huntdown
Shared: Side Scroller · Shoot 'Em Up · Shooter

METAL SLUG
Shared: Side Scroller · Shoot 'Em Up · Arcade

Kero Blaster
Shared: Side Scroller · Shoot 'Em Up · Shooter

Bit Blaster XL
Shared: Shoot 'Em Up · Shooter · Arcade

Alex Jones: NWO Wars
Shared: Shoot 'Em Up · Side Scroller · Shooter

How to Fish
Shared: Fishing · Shooter · Indie

Guns, Gore and Cannoli 2
Shared: Side Scroller · Shoot 'Em Up · Shooter

Guns, Gore & Cannoli
Shared: Side Scroller · Shoot 'Em Up · 2D

PUBG: BATTLEGROUNDS
Shared: Shooter · Third-Person Shooter · Adventure

METAL SLUG 3
Shared: Side Scroller · Arcade · Shooter

GIBZ
Shared: Shoot 'Em Up · Side Scroller · Shooter

Grand Theft Auto V Legacy
Shared: Shooter · Third-Person Shooter · Third Person

METAL SLUG X
Shared: Shoot 'Em Up · Arcade · Side Scroller

DRAINUS
Shared: Shoot 'Em Up · Shooter · Side Scroller

Zombotron
Shared: 2D · Shooter · Shoot 'Em Up

Planes, Bullets and Vodka
Shared: Shoot 'Em Up · Shooter · Arcade

Nova Drift
Shared: Shoot 'Em Up · Arcade · Shooter

Blazing Chrome
Shared: Side Scroller · Shoot 'Em Up · Arcade

METAL SLUG 2
Shared: Side Scroller · Shoot 'Em Up · Arcade

Aimlabs
Shared: Shooter · Third-Person Shooter · Simulation

Warhammer 40,000: Shootas, Blood & Teef
Shared: Side Scroller · Shoot 'Em Up · Shooter