Single-player games like Castle Away
Below are 8 single-player Steam games similar to Castle Away, 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 Away page.
Ranked picks
- 1

DeckTerra
Single-player alternative to Castle Away — playable solo, no multiplayer required. Shares Strategy and Simulation with Castle Away.
DeckTerra is a 4X strategy game built around cards. Explore procedurally generated maps, research new technologies, develop your settlements, and raise armies all while building a deck that complements your strategy.
- 2

Incremental Wars
Single-player alternative to Castle Away — playable solo, no multiplayer required. Shares Strategy and Simulation with Castle Away.
A short incremental game where you battle enemies with a four-person party while collecting loot. Over roughly four hours of gameplay, you’ll unlock a variety of new skills, defeat enemies, and explore different locations in this RPG-style idle game.
- 3

YAARRGH! Battle Island!
Single-player alternative to Castle Away — playable solo, no multiplayer required.
Co-op pirate survival crafting roguelite. Gather resources, craft gear, and build a fortified island stronghold by day—then survive escalating skeleton sieges by night with cannons, traps, combat, and teamwork.
- 4

Red Rocket Defencism
Single-player alternative to Castle Away — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Away.
You, a military officer from our great autocratic motherland, must protect our precious rockets from the evil capitalist enemy in this revolutionary base building strategy game. Bribe! Surveil! Purge! Imbibe! The end justifies the means when you have to protect our invaluable rockets!
- 5

Nederfall
Single-player alternative to Castle Away — playable solo, no multiplayer required. Shares Simulation and RPG with Castle Away.
The Netherlands has fallen. Lead your survivors on scavenging trips through the ruins, find resources, recruit more survivors, and come home to a camp to take care for. Survivors cook, craft, and train on their own. Every item you bring back makes your camp grow stronger.
- 6

Spell Breakers
Single-player alternative to Castle Away — playable solo, no multiplayer required. Shares Strategy and RPG with Castle Away.
Build your Spell Deck, defeat your rivals, and aim for the top of the mysterious tournament, Spell Breakers! This is a new kind of auto-battle roguelike game where collecting over 300 spells is the key to victory!
- 7

Legends of Companion
Single-player alternative to Castle Away — playable solo, no multiplayer required. Shares Indie and RPG with Castle Away.
Legends of Companion is a strategic auto-battling ARPG roguelite where every choice is yours. Pick from 4 classes, build deep skill trees, forge loot, recruit a battle pet, and chart paths across diverse worlds. Master skills, gear, and team combos to turn one spark into an unstoppable legend.
- 8

Dragonhaul
Single-player alternative to Castle Away — playable solo, no multiplayer required. Shares Strategy and Indie with Castle Away.
Dragonhaul is a retro roguelite autobattler where every step matters. Explore a hand-pixelled overworld, arrange powerful items in an expanding inventory and construct devastating synergies before the boss arrives, no two runs are the same.