Single-player games like Islets Defense
Below are 8 single-player Steam games similar to Islets Defense, 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 Islets Defense page.
Ranked picks
- 1
The King is Watching
Single-player alternative to Islets Defense — playable solo, no multiplayer required. Shares Strategy with Islets Defense.
The King is Watching is a roguelite kingdom builder. Rule by the power of your royal gaze! Decide between producing resources, training armies, or balancing both, while adapting to unique events every run
- 2
Isle of Arrows
Single-player alternative to Islets Defense — playable solo, no multiplayer required. Shares Strategy with Islets Defense.
Isle of Arrows is a Puzzle Tower Defense game in which you build a fortress in the sky. Place towers, expand the isle, and build your own paths. Can you find the perfect spot for each tile to beat the RNG and defend against waves of invaders?
- 3
Monsters are Coming!
Single-player alternative to Islets Defense — playable solo, no multiplayer required. Shares Strategy with Islets Defense.
Beware, Monsters are Coming! In this Tower-Survivor rogue-lite, you protect an ever-moving city from unrelenting hordes. Gather resources, fortify defences, and survive for as long as you can. Will you reach the Ark?
- 4
Wool at the Gates
Single-player alternative to Islets Defense — playable solo, no multiplayer required. Shares Strategy with Islets Defense.
A minimalist tactical base defense game where you fight as a hero, command troops, and build powerful class synergies while fortifying your city against relentless waves of invading sheep.
- 5
Nordhold: Origins
Single-player alternative to Islets Defense — playable solo, no multiplayer required. Shares Strategy with Islets Defense.
Immerse yourself in Nordhold: Origins, a tower defense game with high replayability. Build a medieval Nordic village, develop its economy, and defend it with unique towers and upgrades. Choose heroes and relics, compete on leaderboards, and aim for the Valhalla rank!
- 6
Hold The Mine
Single-player alternative to Islets Defense — playable solo, no multiplayer required. Shares Strategy with Islets Defense.
Explore and defend your mine against waves of monsters in this innovative roguelike survival game! Collect and manage your resources, discover buildings with unique effects and unleash mighty heroes to hold monsters out of the mine until the sun rises.
- 7
Kingdom's Deck
Single-player alternative to Islets Defense — playable solo, no multiplayer required. Shares Strategy with Islets Defense.
Build by day, defend by night! Kingdom's Deck is a card-based city builder where you build and protect your Kingdom from the enemy siege. Build your deck, deploy your cards wisely, defend your walls, manage your resources, and respond to various events that will shape your Kingdom!
- 8
DarkSwitch
Single-player alternative to Islets Defense — playable solo, no multiplayer required. Shares Strategy with Islets Defense.
DarkSwitch is a vertical survival city builder. Build a city on a great tree and defend it against the Fog. Face the challenges of limited real estate, scarce resources, and tough moral choices as you seek to uncover the mystery of the Shroud. The Tree Provides! The Tree Protects! The Tree Prevails!