Rheum
Offers
Trailers & screenshots
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About Rheum
Rheum is a game in which you play as an eyeball traveling through a fleshly vessel. You collect rheum, or “eyeball crusties,” to grow stronger and fight the infection plaguing the body. Upgrade your pupils and use cornea-crushing eye blasts to clear the screen of bullets.
Fight the infection
Combat brings you up against a variety of enemies, with plenty of bullets and eyeballs on screen. You can stack power-ups, and the game includes secret hidden boss fights.
Modes and characters
There are two difficulty modes, as well as an unlockable endless mode with new upgrades and challenges. You can unlock six playable characters and compete for high scores on online leaderboards.
Other features
The game includes an original soundtrack and old-fashioned cheat codes.
Frequently asked questions
The best price for Rheum is $0.75 at Kinguin. That is 74% less than on Steam, where it costs $2.99. 3 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 Rheum 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 Rheum are: Windows XP, 1 GB RAM, 140 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Rheum is a single-player game.
Yes. Rheum is the full base game. You need nothing else to play it.
Buy Rheum 74% cheaper than on Steam.
Rheum is available for 74% less in shops such as Kinguin or Eneba.
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.











