Single-player games like Nullnest
Below are 9 single-player Steam games similar to Nullnest, 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 Nullnest page.
Ranked picks
- 1
Incrempire
Single-player alternative to Nullnest — playable solo, no multiplayer required. Shares Action and Strategy with Nullnest.
Defend. Upgrade. Dominate. A relaxing incremental base-defense game, packed with powerful skills and a deep skill tree.
- 2
Horde is Coming
Single-player alternative to Nullnest — playable solo, no multiplayer required. Shares Action and Strategy with Nullnest.
Your heroes never move. The horde never stops coming. Create insane builds, position your team, combine runes, and unleash two powerful abilities at the perfect moment to survive increasingly brutal waves of monsters.
- 3
More War: Iron and Arcane
Single-player alternative to Nullnest — playable solo, no multiplayer required. Shares Strategy with Nullnest.
An incremental war game where technology and magic clash. Gather resources, unlock units and upgrades, and grow from small battles to massive wars.
- 4
Idle Survivor
Single-player alternative to Nullnest — playable solo, no multiplayer required. Shares Action with Nullnest.
Your ship is stranded and cannot move. Something out here has woken up, and it breeds faster than you can kill it. All you can do is upgrade your arsenal and fight back, wave after wave, for as long as you can hold.
- 5
Castle And Cursor
Single-player alternative to Nullnest — playable solo, no multiplayer required. Shares Action and Strategy with Nullnest.
Do you like Tower Defense and also clicking the cursor? Then defend your castle with itself and with your cursor. Each castle has its own unique upgrades. Complete stages unlock different castles and upgrade your cursor skills.
- 6
Greed Forest TD
Single-player alternative to Nullnest — playable solo, no multiplayer required. Shares Action and Strategy with Nullnest.
Build huge mazes, combine towers for wild synergies, discover ridiculous spells and upgrades, and turn your Buildy into a baddie.
- 7
Space Annihilator
Single-player alternative to Nullnest — playable solo, no multiplayer required. Shares Action and Strategy with Nullnest.
Command a powerful space warship and fight your way through relentless waves of enemy ships and bases to achieve the ultimate victory!
- 8
Tower Vibes
Single-player alternative to Nullnest — playable solo, no multiplayer required. Shares Strategy with Nullnest.
Classic tower defense depth with an extra sound waves sync tech garnish
- 9
Ash Warden
Single-player alternative to Nullnest — playable solo, no multiplayer required. Shares Strategy with Nullnest.
Survive waves of enemies in Ash Warden, an incremental tower defense where you slowly become overpowered. Unlock new abilities, fight against powerful bosses, and evolve into an unstoppable force against the endless Redgaze hordes.