Single-player games like Castle Defense Battles
Below are 16 single-player Steam games similar to Castle Defense Battles, 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 Castle Defense Battles page.
Ranked picks
- 1

Runeomicon
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Defense Battles.
Perform a dark ritual with your own hands under relentless pressure. Draw runes in real time, defend the ritual from enemies trying to stop it, and upgrade your skills to unleash devastating magic. Summon ancient eldritch gods in this dark fantasy game driven by skill, strategy and constant tension.
- 2

GemCraft - Frostborn Wrath
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Defense Battles.
The epic tower defense dark fantasy journey continues! Create powerful gems with various abilities and take on the battle against an endlessly flowing army of monsters, and face the growing darkness as you fight your way back towards the Spiritforge.
- 3

1BIT CASTLE REMAKE
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Action and Indie with Castle Defense Battles.
Dive into 1BIT CASTLE: REMAKE, a strategic action-packed tower defense game. Choose heroes and perks to fight off evil monsters. Enjoy captivating pixel art while protecting your treasures in this addictive adventure with endless mode!
- 4

Unholy Alliance - Tower Defense
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Defense Battles.
Enemies from this world and the dark one fight together in an “Unholy Alliance” to destroy your Extractors. Get ready to face and defeat enemy hordes using a vast arsenal of towers and special powers at your command in a unique tower defense game that will push your tactical skills to the limit!
- 5

The Gate Must Stand
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Defense Battles.
Fend off brutal waves of demonic hordes in this epic fantasy tower defense survivors like! Hack and slash among the action or zoom to strategically control the battlefield. You are the city’s last line of defense, build your base, defend the gate!
- 6

Spirits of the Hellements - TD
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Strategy with Castle Defense Battles.
Assemble legendary Spirits and defend against the endless hordes of Hell. A tower defense where you must shape the battlefield and create a maze using the three Hellements. Use Fire, Lightning, and Wind tiles to trap your enemies, or augment your defenses.
- 7

Hell Warders
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Defense Battles.
Face the gates of Hell in a fusion of third-person action, RPG and Tower Defence. Repel the demons alone or in co-op by building defences. Upgrade powerful units to help you in battle, before jumping into the fight yourself, with an arsenal of skills and weapons to rip apart the oncoming swarm.
- 8

Talisman: Digital 5th Edition
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Strategy and Adventure with Castle Defense Battles.
The definitive, most customisable version of Talisman, ever. Discover a world where every journey is a fresh experience in the ultimate digital sandbox for this iconic fantasy adventure board game. This is your Talisman, your rules.
- 9

Shadow Ninja: Apocalypse
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Action and Strategy with Castle Defense Battles.
Fast 2D ninja action where every mistake costs everything. Run, dodge, attack and survive as long as you can.
- 10

Red Fox and the Four Seasons
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Action and Indie with Castle Defense Battles.
Embark on an enchanting adventure as Fox, exploring vibrant worlds of spring, summer, autumn, and winter. Jump, double jump, and overcome challenging obstacles in this captivating 2D platformer with stunning graphics. Skillfully navigate with just two buttons and uncover the secrets that lie within.
- 11

Solitaire - Cat Pirate Portrait
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Defense Battles.
Solitaire - Cat Pirate Portrait - Experience the crisp, clear, and easy to read cards, simple and quick animations, and nice sounds, you can play with portrait views. You can move cards with a single tap or drag them to their destination.
- 12

Puzzle: Underwater World
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Defense Battles.
Puzzle: Underwater World is a classical puzzle game invented in 1878, it’s still popular today. The sliding puzzle that consists of a frame of numbered square tiles in random order with one tile missing. The object of the puzzle is to place the tiles in order by making sliding moves that use the empty space.
- 13

Rainbow Duck
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Action and Indie with Castle Defense Battles.
Turn the Duck upside down and defying the laws of gravity. Rainbow Duck is an addictive game that requires focus, concentration and precise timing. The intuitive one-tap controls allow you to discover the ideal path through all the challenging mazes.
- 14

Jewels of the Mysterious Woodland
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Defense Battles.
Jewels of the Mysterious Woodland - The new match 3 game is here, with brilliant jewels in over 600 dazzling puzzles! A magical journey filled with waves of excitement and brilliant visuals! Swap jewels to clear the way, and match pieces to crush each challenge that lies ahead.
- 15

Klondike Solitaire Kings
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Defense Battles.
Famous Card game also known as Klondike. We kept the game true to the spirit of the classic Solitaire (also known as Klondike or Patience) Klondike Solitaire Kings features a beautiful custom designed card set in high resolution with 300+ levels, playing Patience on your desktop never looked this good!
- 16

Mahjong Challenge
Single-player alternative to Castle Defense Battles — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Defense Battles.
Mahjong Challenge is the perfect game for the casual player looking for fun and extensive gameplay. The goal of this game is to match open pairs of identical tiles and remove them from the board. The game is finished when all pairs of tiles have been removed from the board.