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Cubic Castles
Your blocks, your castle, your world! Build anything you can dream up and explore with other players! Cubic Castles is a mini-MMO that combines the best of block-building and 3D platform action! Create fantastic parkour challenges, explore worlds made by other players, or even make friend!
What players say
Steam review score and the most-helpful voices, which may include critical ones. Data as of 2026-05-20.
“I hope this game gets renewed. I will definitely go back and play this game again, because of how chill the game is. I hope any developers or staff could see this comment. I am still waiting.. no.. We are waiting for a rework of this game.”
— a player, Steam review · 754 hrs played“This is trading game and community centered game with good elements of building and exploring although lacking in a lot of areas the elements where they excel in are truly great.”
— a player, Steam review · 291 hrs played“bad admins / support”
— a player, Steam review · 49 hrs playedPlayer activity
Monthly average concurrent players. Live count fetched 2026-07-23 23:58 UTC · history via SteamCharts.
Price tracking
US-region pricing (USD), sampled twice daily by our own tracker since 2026-07-11. Steam prices vary by region — always confirm your local price on Steam.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Christmas Building Contest 2022 (OFFICIAL EVENT)
Welcome to Christmas Building Contest 2022! Rules - All builds must be 33 x 33 - All builds must have an info bumper with a date no earlier than 19/12/22 - All builds must have a warp food bumper with
Best Realms 2022 (OFFICIAL EVENT)
Welcome to the best realms of 2022 where you get to showcase all the fabulous building from 2022! Rules - All builds must have been made in 2022 and have an info bumper to prove the date the realm was
Halloween Building Contest 2022 (OFFICIAL EVENT)
Hey everyone and welcome to this years halloween building contest! Rules - All realms must be 33x33 no bigger or smaller! - all realms must have an info bumper bought on the 22nd October or later to s
The Haunting of Hill House (OFFICIAL EVENT)
It's that time of year again! Experience the spooky story of Hill House as you hunt for the poor lost boy. Prizes 10 random people on the event bumper will win 50,000 cubits! Deadline 31st October
Castle In The Sky (OFFICIAL EVENT)
Welcome to the castle in the sky event! This summer themed parkour will test your skills as you climb to the very top! Prizes 20 random people on the bumper will win summer beach umbrellas Deadline 24
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-20.
| Genres | Action, Adventure, Casual, Indie, Massively Multiplayer, Free To Play |
| Player tags | Free to Play · Open World Survival Craft · Building · Multiplayer · Sandbox · Open World · Massively Multiplayer · Crafting · Adventure · Cute · Survival · Casual (SteamSpy community voting) |
| Features | Multi-player · MMO · Cross-Platform Multiplayer |
| Languages | English |
| Estimated owners | 500,000 – 1,000,000 (SteamSpy) |
| Official site | http://www.cubiccastles.com |
Minimum system requirements (PC)
Minimum: OS: Windows 10 Processor: Core 2 Duo or higher. Athlon 64 or higher Memory: 4 GB RAM Graphics: 1280x720, DirectX 10 DirectX: Version 10 Network: Broadband Internet connection Storage: 150 MB available space