Single-player games like Nightmare Invasion
Below are 8 single-player Steam games similar to Nightmare Invasion, 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 Nightmare Invasion page.
Ranked picks
- 1
Rogue Realm: Guardian Grids
Single-player alternative to Nightmare Invasion — playable solo, no multiplayer required. Shares Strategy and Indie with Nightmare Invasion.
Rogue Realm: Guardian Grids is a medieval fantasy blend of tower defense and roguelike progression. Build defenses on a grid, manage resources, and survive ever-evolving enemies.
- 2
坍塌世界
Single-player alternative to Nightmare Invasion — playable solo, no multiplayer required. Shares Strategy and Indie with Nightmare Invasion.
"Collapsing World" is an innovative tower defense game blending deck-building and roguelike mechanics. Recruit unique companions, craft powerful skill decks, and tackle randomized stages. Deep strategy breaks the traditional TD mold—every run is a fresh challenge!
- 3
Card Conquest
Single-player alternative to Nightmare Invasion — playable solo, no multiplayer required. Shares Strategy and Indie with Nightmare Invasion.
Card Conquest is a Tower Defense game with Deckbuilding and Roguelite elements. Combine spells, towers and units to create a deck and defeat your enemies. Spend your resources wisely and find balance between offense and defense. Gather powerful relics that will enhance your cards.
- 4
Weather Roll
Single-player alternative to Nightmare Invasion — playable solo, no multiplayer required. Shares Strategy and Indie with Nightmare Invasion.
Weather Dice is a turn-based roguelike deckbuilder. Wield rare Mana to awaken unique, charming plant girls, fend off monster hordes across four seasons. Use Weather Dice to rewind time, change weather, turn the tide in despair, and defend your last home!
- 5
Lucky Again
Single-player alternative to Nightmare Invasion — playable solo, no multiplayer required. Shares Strategy and Indie with Nightmare Invasion.
Face down swarms of enemies using cards with diverse abilities. Evolve your own unique deck to overcome the trials ahead, and become a quick-witted hero who can conquer any crisis. You will be joined by loyal companions OR charismatic fairies who aren't afraid to use you for their own ends.
- 6
Seize Siege TD
Single-player alternative to Nightmare Invasion — playable solo, no multiplayer required. Shares Strategy and Indie with Nightmare Invasion.
Build a deck to protect your king in this tower defense! Select your king, your cards and create your combos.
- 7
Rogue Cube Defense
Single-player alternative to Nightmare Invasion — playable solo, no multiplayer required. Shares Strategy and Indie with Nightmare Invasion.
Rogue Cube Defense is a minimalist roguelite tower defense game with procedurally generated path that you gradually build up. Each run is different as the upgrades you get from leveling up are random. Pick your towers loadout and come up with the best strategy to beat the hordes of enemies.
- 8
Roll to Ruin
Single-player alternative to Nightmare Invasion — playable solo, no multiplayer required. Shares Strategy and Indie with Nightmare Invasion.
Roll to Ruin is a medieval dice roguelite. Roll, hold, bank or farkle — Farkle rules with a deckbuilding twist. Battle through seven taverns, build your dice deck, wield 34 badges to flip the table. Outscore your rival or lose it all. Dice are fate. Every wager counts. Just one more... right?