Cataclismo Review: Build Castles Brick by Brick and Survive the Night
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Short answer: Cataclismo is a castle-building strategy game where you design your walls brick by brick and then defend them against horrors that come at night. Critics call its building tools some of the best in any strategy game, and players rate it Very Positive on Steam (88% of 2,338 English reviews). It left Early Access in March 2025 with a campaign, skirmish and endless modes. If you like to design your own fortress, it is a strong pick at $29.99.
What is Cataclismo?
Cataclismo is a real-time strategy game from Digital Sun, the studio behind Moonlighter, published by Hooded Horse. A dark mist has covered the world, and by day you gather resources and build. At night, the Horrors attack. Instead of placing ready-made walls, you build each defence piece by piece, and the way you stack your blocks decides whether it stands.
| Developer | Digital Sun |
|---|---|
| Publisher | Hooded Horse |
| Release | 20 March 2025 (Early Access from 22 July 2024) |
| Platforms | Windows |
| Genre | Real-time strategy, castle builder |
| Steam rating | Very Positive (88% of 2,338 English reviews) |
| Price | $29.99 |
What players and critics love
Building like a set of blocks
You choose each block. Wood is fast and cheap; stone is slower but tougher. Structural integrity matters, so a tall tower needs a solid base. PC Gamer called the building best in class, and it is easy to lose an hour shaping one gatehouse.
Height wins fights
Archers on high walls work best, so the design of your defence has a clear impact in battle. Watching a wave of Horrors break on a wall you built yourself is the payoff players keep mentioning.
A clear interface
Reviewers praise how readable the interface is, so it is easy to see what is weak and needs work before night falls.
Plenty of ways to play
There is a story campaign, a skirmish mode and an endless mode, plus a map editor. You can save designs as blueprints and share them through the Steam Workshop.
What to know before you buy
- Slow pace. GamesRadar noted the slow pace, and PC Gamer felt the preparation loop can become a chore over time.
- Fully released. The game left Early Access on 20 March 2025, so you get the complete campaign.
- DLC. The Old Kingdom expansion is sold separately for $9.99.
- Windows only on Steam.
Who should buy Cataclismo?
Buy it if you love designing defences and want a strategy game where your creativity matters as much as your reflexes. If you prefer fast, action-heavy RTS games, the slow build-and-wait rhythm may not suit you. For another way to build under pressure, see our Against the Storm review, or try our Manor Lords review for a calmer medieval builder.
Sources
- Steam store page and user reviews for Cataclismo
- PC Gamer: Cataclismo review
- GamesRadar: Cataclismo review
- Nexus store page for Cataclismo
Last checked against sources: 10 November 2026.
