Single-player games like Royal Defense
Below are 13 single-player Steam games similar to Royal 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 Royal Defense page.
Ranked picks
- 1
Fort Defense
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Royal Defense.
All hands on deck! Pirate armada dead ahead! Take part in an uncompromising struggle repelling freebooters' assaults. Watch out, the enemy may catch the tide for ruining your fortress. Build towers, collect crystals, upgrade spells and believe in your victory!
- 2
Timber Wars
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Casual with Royal Defense.
In Timber Wars, protect sacred trees from relentless lumberjacks and machines. Summon and upgrade guardian trees with points earned over time or by defeating enemies. Strategically place and strengthen your guardians to defend the forest for as long as you can in this intense top-down strategy game.
- 3
Seditionis: Tower Defense
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Casual with Royal Defense.
Seditionis - Tower Defense is a sci-fi based infinite TD game with 190+ upgrades to make your gameplay, units, and towers more powerful. 4 tiers of towers in each line, with 20 upgrade levels each. An introductory story gives you a sense of what you're fighting for. After all, this galaxy needs you.
- 4
PathSketch
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Royal Defense.
PathSketch is a classic puzzle-solving game.
- 5
Made in Lucifer City
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Royal Defense.
Build and design your demon castle with unique room combinations, fend off invading heroes and adventurers, harvest resources from their failed assaults, and recruit them into your ever-growing army. Hear their stories — each hailing from a different world—and listen to their voices.
- 6
灯台の見守り — Lighthouse's Vigil
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Royal Defense.
You're a lighthouse keeper on a dark shore. Sweep your beam to guide lost souls home, and burn back the dark creeping in from the sea.
- 7
Iron Heart
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Adventure with Royal Defense.
Fight a soulless steel army. Prove your mettle in a storm of fire and steam!
- 8
Affogato
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Royal Defense.
Affogato is a RPG featuring a unique 'reverse tower defense' mechanic. Play as a sorceress managing a café in Arorua. Meet customers from all walks of life, hear their stories and travel into their minds to help them defeat their inner demons. Experience a city life that exudes magic and excitement.
- 9
Medieval Defenders
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Royal Defense.
Defend your ancestral castle – show the invader who the master is! Build towers, save money, train your spells, and your enemy will be vanquished.
- 10
Witch Hunt
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Indie and Adventure with Royal Defense.
Witch Hunt is a challenging horror themed hunting game that takes place in the 18th century. Main focus of the game is on exploration, non-linearity, and atmosphere.
- 11
Kingdom Run VR
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Indie and Adventure with Royal Defense.
Kingdom Run VR is an action-packed fitness game; explore trapped tombs, avoid dangers, collect gems and eliminate enemies!
- 12
Galaxy Reavers
Single-player alternative to Royal Defense — playable solo, no multiplayer required. Shares Strategy and Indie with Royal Defense.
This is a fun yet challenging RTS game. To survive in the vast galaxy, you need to build up your own fleet and customize your warships. You will also learn to control them efficiently in battle to defeat your enemies, conquer planets, and expand your galactic empire!
- 13
The World II: Hunting BOSS
Single-player alternative to Royal Defense — playable solo, no multiplayer required.
Fight the largest monsters you’ve ever faced while building your destiny as the greatest Hero in the world. China’s biggest Action game series is now available in the west.