Single-player games like Sealand Survivor
Below are 8 single-player Steam games similar to Sealand Survivor, 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 Sealand Survivor page.
Ranked picks
- 1

Haunt Monster
Single-player alternative to Sealand Survivor — playable solo, no multiplayer required. Shares Action and Strategy with Sealand Survivor.
Haunt Monster is a FPS Action Roguelike game in a random generated environment. Build, defend and survive waves of zombies, monsters and aliens. Play solo or co-op with a friend to survive.
- 2

Putin Must Die - Defend the White House
Single-player alternative to Sealand Survivor — playable solo, no multiplayer required. Shares Action and Strategy with Sealand Survivor.
Vladimir has gone mad. He has created an army of Russian-speaking Putin clones to destroy America, and the White House is the final frontier. You must defend the White House against invading hordes of Vladimir clones, or become one of them. Zombies have Procedural Dismemberment.
- 3

Modavuj Save The Babies
Single-player alternative to Sealand Survivor — playable solo, no multiplayer required. Shares Action and Strategy with Sealand Survivor.
Save The Babies is an adventure game where you enter into armed conflicts with robots and try to overcome many platform obstacles. In 8 levels, you need to save 8 girls by overcoming obstacles that become more difficult as you progress.
- 4

BossHunter VR
Single-player alternative to Sealand Survivor — playable solo, no multiplayer required. Shares Action and Adventure with Sealand Survivor.
BossHunter VR is the first version of the game where players will have to fight many interesting opponents, use multiple weapons, and a unique mechanic of its kind where the player directly commands a weapon to execute something with the help of speech. The hunt is on!
- 5

Cyborg: Rise
Single-player alternative to Sealand Survivor — playable solo, no multiplayer required. Shares Action and Indie with Sealand Survivor.
An adventure game that combines first person shooter and Roguelite random elements. Players can manipulate heroes with different abilities in the game. Embark on adventure challenges in random levels. Every time you respawn, you can unlock new skills and equipment to challenge stronger enemies.
- 6

Forest Frenzy
Single-player alternative to Sealand Survivor — playable solo, no multiplayer required. Shares Action and Indie with Sealand Survivor.
Shoot to survive, shoot em' up, score attack! A wave based shooter where you must buy weapons and upgrades to survive! Get local high scores or compete on steam leaderboards!
- 7

Inheritors2078
Single-player alternative to Sealand Survivor — playable solo, no multiplayer required. Shares Action and Strategy with Sealand Survivor.
Inheritors 2078 is an RTS/TPS/FPS hybrid game with full Multiplayer & Co-op support, taking its events in the near future where the world is being dominated by evil robotic incarnates that were once enslaved by humans.
- 8

Katana-Ra: Shinobi Rising
Single-player alternative to Sealand Survivor — playable solo, no multiplayer required. Shares Action and Strategy with Sealand Survivor.
In Shinobi Rising, players take on the role of a young Shinobi who must solve a murder mystery and discover the culprit behind the death of an innocent child heiress. You have 8 hours. Stealth, combat - or glorious death? The choice is yours!