Games like Oh Ship Arena
Games like Oh Ship Arena include Halo: Spartan Assault, HELLDIVERS™ Dive Harder Edition, Chippy, Deployment, and STAR WARS™ Battlefront™ II. We matched them by the tags players give Oh Ship Arena on Steam (Arena Shooter, Top-Down Shooter, Twin Stick Shooter, Shooter, and Arcade): closest matches first, and among equally close ones the better-known games.

Halo: Spartan Assault
Shared: Top-Down Shooter · Shooter · Twin Stick Shooter

HELLDIVERS™ Dive Harder Edition
Shared: Top-Down Shooter · Twin Stick Shooter · Action

Chippy
Shared: Arena Shooter · Twin Stick Shooter · Top-Down Shooter

Deployment
Shared: Arena Shooter · Top-Down Shooter · Shooter

STAR WARS™ Battlefront™ II
Shared: Shooter · Space · Action

Kill The Crows
Shared: Top-Down Shooter · Arcade · Arena Shooter

Halo: Spartan Strike
Shared: Top-Down Shooter · Shooter · Action

X-Morph: Defense
Shared: Strategy · Twin Stick Shooter · Action

Nova Drift
Shared: Arena Shooter · Arcade · Shooter

Cyberhunt
Shared: Twin Stick Shooter · Action · Arcade

Bit Blaster XL
Shared: Shooter · Arcade · 2D

PUBG: BATTLEGROUNDS
Shared: Shooter · Survival · Action

SNKRX
Shared: Arena Shooter · Top-Down Shooter · Arcade

Time Wasters
Shared: Twin Stick Shooter · Arena Shooter · 2D

Geometry Wars: Retro Evolved
Shared: Twin Stick Shooter · Arcade · Shooter

Sektori
Shared: Twin Stick Shooter · Arena Shooter · Arcade

State of Anarchy: Master of Mayhem
Shared: Top-Down Shooter · Twin Stick Shooter · Arena Shooter

Police Stories
Shared: Top-Down Shooter · Strategy · Action

Strike Force Heroes
Shared: Arena Shooter · Shooter · 2D

DoDonPachi Resurrection
Shared: Top-Down Shooter · Shooter · Arcade

Yet Another Zombie Defense HD
Shared: Top-Down Shooter · Arena Shooter · Shooter

Brotato
Shared: Arena Shooter · Top-Down Shooter · Survival

12 is Better Than 6
Shared: Top-Down Shooter · Shooter · Action

Deep Rock Galactic: Survivor
Shared: Top-Down Shooter · Arena Shooter · Arcade