Terrorhedron
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About Terrorhedron
Terrorhedron is a 3D cooperative tower defense game in which you defend abstract grid landscapes from waves of colorful Terrorhedron spheres. You can play online co-op with up to eight players.
Build your defenses
Place programmable turrets and use micro-strategy to respond to the attacks. The game adds three-dimensional gameplay and lets you unlock infrastructure, turrets, upgrades and tracks as you work to earn all the stars.
Frequently asked questions
The best price for Terrorhedron is $1.99 at Steam. 2 shops have an offer that activates in your country.
Some are. This page only shows offers that activate in your country; offers for other regions, or with no stated region, are left out. To see the offers for another country, change your country at the top of the page.
Every key we list activates on Steam. Redeem the key there and Terrorhedron stays in your library for good.
Yes, with a small risk. Publishers create keys to sell in other shops, which is why a key can cost less than in the official store, and once you activate it the game is yours to keep, just like a store purchase. On average 1–2% of keys fail, so check the shop's buyer protection before you buy: the official store does not refund keys bought elsewhere.
The minimum requirements for Terrorhedron are: Windows XP, Intel Core 2 Duo, 2 GB RAM, 300 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
Yes. Terrorhedron has multiplayer and a single-player mode.
Mostly, yes. Valve rates Terrorhedron as Playable on the Steam Deck: it runs, but may need some manual setup.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











