Games like SHIPS AT WAR
Games like SHIPS AT WAR include UBOAT, People Playground, Totally Accurate Battle Simulator, From the Depths, and Garry's Mod. We matched them by the tags players give SHIPS AT WAR on Steam (Sandbox, Physics, Naval Combat, 2D, and World War II): closest matches first, and among equally close ones the better-known games.

UBOAT
Shared: Naval Combat · World War II · Submarine

People Playground
Shared: Sandbox · Physics · 2D

Totally Accurate Battle Simulator
Shared: Sandbox · Physics · Strategy

From the Depths
Shared: Sandbox · Naval Combat · Physics

Garry's Mod
Shared: Sandbox · Physics · Building

Ultimate Admiral: Dreadnoughts
Shared: Naval Combat · Naval · World War II

Total Tank Simulator
Shared: Sandbox · Strategy · World War II

NavalArt
Shared: Sandbox · Naval Combat · Wargame

Sprocket
Shared: Sandbox · World War II · Physics

Terraria
Shared: Sandbox · 2D · Crafting

War on the Sea
Shared: Naval Combat · Naval · World War II

Forts
Shared: Physics · Sandbox · Strategy

Your Only Move Is HUSTLE
Shared: Sandbox · 2D · Strategy

Scrap Mechanic
Shared: Sandbox · Physics · Building

Space Engineers
Shared: Sandbox · Physics · Building

Besiege
Shared: Sandbox · Physics · Simulation

Noita
Shared: Physics · Sandbox · 2D

Sea Power : Naval Combat in the Missile Age
Shared: Naval Combat · Strategy · Naval

Brick Rigs
Shared: Sandbox · Physics · Building

Silent Hunter® III
Shared: Naval Combat · World War II · Submarine

Animal Revolt Battle Simulator
Shared: Sandbox · Physics · Strategy

Prison Architect
Shared: Sandbox · 2D · Strategy

Cold Waters
Shared: Naval Combat · Submarine · Naval

Kerbal Space Program
Shared: Sandbox · Physics · Simulation