Single-player games like Castra
Below are 12 single-player Steam games similar to Castra, 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 Castra page.
Ranked picks
- 1
Ymir
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Indie with Castra.
Ymir is a 4X multiplayer strategy game combined with a city builder where each player develops a civilization of pigmen starting at the stone age.
- 2
Rec Center Tycoon - Management Simulator
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Indie with Castra.
Design, build and manage a recreation center! Host fitness classes, build swimming pools, arcade & entertainment areas, build event rooms to host parties & much more. With endless customisation, Rec Center Tycoon goes much more in-depth than your average business management simulator.
- 3
Anno 1404 - History Edition
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Simulation with Castra.
Relive the captivating gameplay of a true city-building classic with Anno® 1404 History Edition.
- 4
Hearth and Hamlet
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Simulation with Castra.
Start with a campfire. Build a kingdom. Hearth and Hamlet is a medieval citybuilder clicker that blends resource management, in-depth upgrade trees and relaxing idle gameplay. Build your empire by researching new technologies, passing new laws, trading with far-off lands, and more.
- 5
Two Point Campus
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Indie with Castra.
Build the university of your dreams with Two Point Campus, the sim with a twist from the makers of Two Point Hospital. Build, hire staff and run an academic institution packed with wild courses.
- 6
Two Point Museum
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Indie with Castra.
Curate and manage incredible museums! Explore to discover amazing artifacts. Design and refine the layout, keep staff happy, guests entertained, donations plentiful… and children off the exhibits
- 7
Stronghold: Warlords
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Simulation with Castra.
Besiege Great Khans, Imperial warlords and Shōgun commanders in Stronghold: Warlords, the latest 'castle sim' from Firefly Studios. Command AI warlords across the battlefield as you build a castle economy and new gunpowder-fuelled siege engines!
- 8
Hotel Giant 2
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Simulation with Castra.
Following its international success, Hotel Giant is back and bigger than ever. In Hotel Giant 2 you will create the hotel of your dreams and manage prestigious locations around the world. Your goal is to attract as many guests as possible and make sure they are satisfied throughout their stay.
- 9
Deducto 2
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Indie with Castra.
A fun sus-like game where you backstab your co-workers and get mad at your co-workers for backstabbing you. (up to 16 players)
- 10
Buy Low Sell High
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Indie with Castra.
Buy Low Sell High is a stock market game made to be easy to learn, fast-paced, and fun. The goal is to make as much money as you can starting with just $5,000. Good luck, have fun!
- 11
Wall Street Tycoon
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Strategy and Indie with Castra.
Wall Street Tycoon is a business simulation game where you’re the CEO of a new investment company. Your job is to grow the company, hire employees, and manage the business!
- 12
WHIPLASH
Single-player alternative to Castra — playable solo, no multiplayer required. Shares Action and Strategy with Castra.
WHIPLASH is a speedrunning FPS where game-changing weapon mods turn ordinary guns into overpowered builds. Craft the perfect loadout, master each course, and chase the perfect run.