Single-player games like AquaNox
Below are 8 single-player Steam games similar to AquaNox, 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 AquaNox page.
Ranked picks
- 1
AquaNox 2: Revelation
Single-player alternative to AquaNox — playable solo, no multiplayer required. Shares Action with AquaNox.
AQUANOX 2: REVELATION is a new story of the underwater world Aqua. In 2666 a young freighter pilot called William Drake sets out to search for the heritage of a mythical ancestor. He is looking for adventure - and finds greed, ruthlessness, merciless hatred … and also unexpected help.
- 2
Barotrauma
Single-player alternative to AquaNox — playable solo, no multiplayer required. Shares Action with AquaNox.
Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!
- 3
BioShock™ Remastered
Single-player alternative to AquaNox — playable solo, no multiplayer required. Shares Action with AquaNox.
BioShock is a shooter unlike any other, loaded with unique weapons and tactics. Complete with an arsenal of revolvers, shotguns, and grenade launchers, players will be forced to genetically modify their DNA to become an even deadlier weapon.
- 4
System Shock 2: 25th Anniversary Remaster
Single-player alternative to AquaNox — playable solo, no multiplayer required. Shares Action with AquaNox.
System Shock® 2: 25th Anniversary Remaster is a genre defining experience that established innovative game-play mechanics that are a staple of the FPS and RPG genre today. Survive the wretched corridors of the Von Braun. Your training has prepared you for this.
- 5
Sub Command
Single-player alternative to AquaNox — playable solo, no multiplayer required.
Take charge of the most deadly modern-day submarines in the world - three distinct submarines across two unique and challenging campaigns. Utilize cutting-edge sensor and weapon technology to locate, track and destroy the enemy - even deliver Tomahawk missiles to inland targets.
- 6
Deus Ex: Invisible War
Single-player alternative to AquaNox — playable solo, no multiplayer required. Shares Action with AquaNox.
Approximately 20 years after Deus Ex, the world is only beginning to recover from a catastrophic worldwide depression. In this techno-nightmare, take part in the dark struggle to raise the world from its own ashes.
- 7
Sublevel Zero Redux
Single-player alternative to AquaNox — playable solo, no multiplayer required. Shares Action with AquaNox.
Sublevel Zero Redux is a roguelite six-degree-of-freedom shooter in a universe where reality is falling apart. Use your zero-g gunship to fight through a vast underground facility, looting advanced weapons to destroy hordes of deadly enemies.
- 8
Chaser
Single-player alternative to AquaNox — playable solo, no multiplayer required. Shares Action with AquaNox.
Mars, 2044. The UN establishes MARSCORP (Martian Security and Economics Committee) under the leadership of Samuel Longwood. In the years that follow, the UN gradually loses control of MARSCORP, mainly due to the non-transparent licence policy of its director.