Games like Battle Group 2
Games like Battle Group 2 include World of Warships, UBOAT, Sea Power : Naval Combat in the Missile Age, UFO 50, and Cold Waters. We matched them by the tags players give Battle Group 2 on Steam (Naval, Naval Combat, Action, Indie, and Strategy): closest matches first, and among equally close ones the better-known games.

World of Warships
Shared: Naval Combat · Naval · Strategy

UBOAT
Shared: Naval Combat · Naval · Action

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

UFO 50
Shared: Indie · Action · Arcade

Cold Waters
Shared: Naval Combat · Naval · Strategy

Windward
Shared: Naval Combat · Naval · Indie

Akane
Shared: Indie · Action · Female Protagonist

Caster
Shared: Action · Indie · Strategy

War on the Sea
Shared: Naval · Strategy · Naval Combat

Blood and Gold: Caribbean!
Shared: Naval · Action · Strategy

Ultimate Admiral: Age of Sail
Shared: Naval Combat · Naval · Strategy

UBERMOSH
Shared: Action · Indie · Arcade

Cyberhunt
Shared: Action · Indie · Casual

Door Kickers
Shared: Strategy · Action · Indie

Timberman
Shared: Indie · Action · Casual

Bright Memory: Infinite
Shared: Action · Indie · Female Protagonist

Children of the Sun
Shared: Action · Strategy · Arcade

Ship Graveyard Simulator
Shared: Naval · Indie · Action

Plebby Quest: The Crusades
Shared: Strategy · Indie · Action

ShellShock Live
Shared: Action · Strategy · Casual

Sairento VR
Shared: Action · Indie · Strategy

Aircraft Carrier Survival
Shared: Naval Combat · Action · Strategy

Hotline Miami
Shared: Action · Indie · Top-Down

Timberman VS
Shared: Action · Indie · Casual