Single-player games like Assault Suit Leynos
Below are 9 single-player Steam games similar to Assault Suit Leynos, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Assault Suit Leynos page.
Ranked picks
- 1

Gunhound EX
Single-player alternative to Assault Suit Leynos — playable solo, no multiplayer required. Shares Action with Assault Suit Leynos.
Gear up and get ready for war! Take on hectic 2D action shooting stages with your deadly Gunhound mech.
- 2

GIGANTIC ARMY
Single-player alternative to Assault Suit Leynos — playable solo, no multiplayer required. Shares Action with Assault Suit Leynos.
Side-scrolling mech-shooting bad-assery is BACK!GIGANTIC ARMY is a heartfelt homage to 16-bit era mech shooters such as Cybernator / Assault Suits Valken, Metal Warriors, and Front Mission: Gun Hazard, developed by the studio behind the acclaimed shooter SATAZIUS.
- 3

Raptor: Call of The Shadows - 2015 Edition
Single-player alternative to Assault Suit Leynos — playable solo, no multiplayer required. Shares Action with Assault Suit Leynos.
The great action-crazed, guns blazing, shoot ‘em up game comes back straight out of the ‘90s. Raptor: Call of the Shadows and its futuristic world are ready to challenge your flying skills.
- 4

Front Mission Evolved
Single-player alternative to Assault Suit Leynos — playable solo, no multiplayer required. Shares Action with Assault Suit Leynos.
Experience piloting and customizing massive armored units called Wanzers while engaging in high-intensity battles driven by a compelling story. The battle begins now!
- 5

Super Robot Wars 30
Single-player alternative to Assault Suit Leynos — playable solo, no multiplayer required.
30 years on, the battle for our world's future continues. Super Robot Wars is a tactical RPG that brings characters and robots from a variety of mecha anime together to battle their mutual foes.
- 6

Project Nimbus: Complete Edition
Single-player alternative to Assault Suit Leynos — playable solo, no multiplayer required. Shares Action with Assault Suit Leynos.
Project Nimbus is a high speed mech action game set in a post apocalyptic world. Players control 'Battle Frames' - humanoid battle suits armed with an arsenal of weapons.
- 7

ASSAULT GUNNERS HD EDITION
Single-player alternative to Assault Suit Leynos — playable solo, no multiplayer required. Shares Action with Assault Suit Leynos.
You are in control of DAT, a Battle Mech Peace Keeping Force. You must save Earth’s Migrants and the Mars Colonies from the threat of the ANTS uprising. Who or what could be leading this threat against Mars, and the new planned perfect utopia for humanity?
- 8

EARTH DEFENSE FORCE 4.1 The Shadow of New Despair
Single-player alternative to Assault Suit Leynos — playable solo, no multiplayer required. Shares Action with Assault Suit Leynos.
It's a fight for the future of the planet between the Ravagers, a merciless swarm of alien invaders, and the Earth Defense Force (EDF) in this third-person shooter.Play as four different classes in over 80 missions with a range of 800 weapons at your disposal.Co-op play supported.
- 9

STEEL STRIDER
Single-player alternative to Assault Suit Leynos — playable solo, no multiplayer required. Shares Action with Assault Suit Leynos.
STEEL STRIDER is the follow up to the acclaimed GIGANTIC ARMY and pays homage to the great run and gun games such as Turrican and Super Contra, but adds mouse / dual analogue stick-operated weapons!