Rheum

Rheum

SpaceMyFriend · May 22, 2018 · Bullet Hell, Shoot 'Em Up, Top-Down Shooter, Difficult, Shooter

Buy Rheum from Steam at $0.71 — the cheapest of 2 stores we compare.

PC
Positive81% · 27 📈 Making a comeback 89%
Best price 58 Good deal
$0.71-76%
$2.99lowest tracked $0.59
Steam Buy at Steam

Prices last checked

More games under $5 →More Steam deals →

Where to buy Rheum — official stores

Steam
Steam
Standard Edition · Steam
-76%
$0.71
$2.99
Buy

Cheapest Rheum keys — keyshops

Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.

Eneba
Standard Edition · Steam
$1.12
Buy

Rheum price by region

Rheum costs $0.52 in Georgia (USD), £0.59 in the United Kingdom, €0.67 in Europe (EUR), $0.71 in the United States, CA$0.93 in Canada, NZ$1.07 in New Zealand, A$1.08 in Australia, R$2.51 in Brazil and zł3.23 in Poland right now.

Cheapest Rheum offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
Georgia (USD) $0.52 −76% $0.52 $1.12 2
United Kingdom £0.59 −76% £0.59 £0.59 2
Europe (EUR) €0.67 −76% €0.71 €0.67 3
United Statesyour region $0.71 −76% $0.71 $1.12 2
Canada CA$0.93 −76% CA$0.93 — 1
New Zealand NZ$1.07 −76% NZ$1.07 — 1
Australia A$1.08 −76% A$1.08 — 1
Brazil R$2.51 −76% R$2.51 — 1
Poland zł3.23 zł3.23 zł3.71 2

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About Rheum

RHEUM \
A mass of muscle and teeth lay dormant before you. As you inch your way closer, it comes alive. A sphincter crying for help, beckons you to descend. Your only option is down.

Travel through a fleshly vessel, as an eyeball, collecting rheum \ to grow stronger in your fight against the infection plaguing this.......body. Collect eye crusties, upgrade your pupils, and clear the screen of bullets with your cornea crushing eye blasts!

FEATURES


  • Two difficulty modes
  • Unlock-able endless mode
  • Endless mode features new upgrades and challenges
  • Stack-able power ups
  • 6 playable characters to unlock
  • Secret hidden boss fights!
  • Compete for the highscore with online leaderboards!
  • A variety of enemies to combat
  • Original soundtrack
  • A plethora of bullets and eyeballs!
  • Good ol' fashioned cheat codes!
  • Full keyboard and controller support

Rheum — game info

Platforms
Windows
Player modes
Single-player
Controller
Full controller support
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Jul 28, 2023
Quick Score: 4/5 Notes: The UI is interesting, but also not super practical, I played for 2 hours before realizing there actually was a tutorial in the game. the tutorial should definitely be enabled by default for your first playthrough because i had a million questions and none of them were being answered. Bosses are fun, the 3 stages are all kind of the same thing though, and because of the power scaling the final stage actually ends up being the easiest aside from the boss. For 3$ the game is definitely worth it, you will get at least 2-3 hours of enjoyment out of it, maybe a bit more if you go for the achievements. Speaking of which, I would have liked to seen just a handful more interesting achievements. Such as a 1cc hard mode with TLB, or some score goal, etc.
4 found this helpful
Recommended Feb 25, 2026
Rheum, developed and published by SpaceMyFriend, is an unconventional vertical shoot ’em up that embraces surreal biological imagery and fast-paced arcade design to create a memorable and eccentric experience. Instead of piloting a spacecraft through outer space, players control an eyeball descending through the interior of an infected body. This unusual premise immediately sets the tone for a game that prioritizes originality and bold aesthetic choices. The environment is organic, visceral, and intentionally strange, immersing players in a fleshy world filled with hostile microorganisms and pulsating hazards. At its core, Rheum follows classic shoot ’em up structure. Players navigate downward-scrolling stages while firing continuously at waves of enemies that appear in increasingly complex formations. Dodging projectiles becomes essential as bullet patterns grow denser and more aggressive. The gameplay leans into bullet-hell intensity at times, requiring precise movement and quick reflexes to survive chaotic encounters. While the mechanics are rooted in traditional arcade shooters, the unusual setting and visual presentation give the action a distinctive identity. Progression in…
3 found this helpful
Not recommended Feb 19, 2024
Rheum is yet another of literally hundreds of lazy amateur 2D retro bullet hell shoot 'em ups infesting Steam and lowering the average quality of all video games everywhere. This one has an oesophagus theme, which is a terrible idea, but then again, so is reskinning a shoot 'em up template from the GameMaker Studio construction kit and pretending to be a game developer. And then inflicting that on Steam gamers after paying $100 to publish garbage through Valve's disastrous Steam Direct program. Yet here we are. Anyway this is a really badly made shmup. There's a slew of defects on top of the shallow, mediocre gameplay and craptastic "art". From a technical perspective, the game doesn't meet basic minimum requirements that most PC gamers expect as standard. A choice was made to use obsolete, decades old retro pixel "art" as a substitute for contemporary PC graphics. It's unclear if this is due to lack of budget or talent, regardless, the overall visual quality of the game is extremely low as a result. There's no option to change the resolution and no useful graphics tweaks. There's no way to ensure this is running at the native resolution of your display. There's no gua…
3 found this helpful
Recommended Oct 1, 2023
I'd say SpaceMyFriend has done it again but this is an older title (2018) that I've just discovered. I love his visceral themes and just the quirky nature of his games, and all the hidden little extras you can find if you delve deep enough. Bosses are hard as nails! Replayable. Rheum's a superb top-scrolling shooter which quickly turns into a bullet hell. Super challenging; has secrets if you can survive long enough to find them. Love the visceral theme, great little game. For more niche curation, follow me at: https://store.steampowered.com/curator/27440015-CSH-Picone/
3 found this helpful
Recommended Mar 21, 2024
Pretty cool game. Hope you try it out.
1 found this helpful
Recommended Aug 15, 2023
Don't really know why the game has a mixed review score, as it definitely is good enough to get a positivie imo.
1 found this helpful

Community reviews

—

0 reviews

Sign in to write a review.

No reviews yet. Be the first to review this game.

More like Rheum

News

All news →
Final Fantasy XI price: what you pay, then keep payingPC

Final Fantasy XI price: what you pay, then keep paying

The Final Fantasy XI price is two numbers, and the subscription is the one that matters. Our tracked low, what the Ultimate Collection includes, and when buying at list is correct.

Oct 16, 2026
Castlevania Belmont's Curse price: which edition to buyPC

Castlevania Belmont's Curse price: which edition to buy

The Castlevania Belmont's Curse price splits in two: Steam charges full list, authorised resellers a quarter less. Our record says that 25% has not moved since June, and is the floor.

Oct 16, 2026
Hogwarts Legacy price history: where the floor really isDeals

Hogwarts Legacy price history: where the floor really is

Our Hogwarts Legacy price history runs to 100 daily readings and a $3.99 median. Why the sub-dollar figure in search results is noise, and what to actually pay.

Oct 15, 2026
Enshrouded price after 1.0: what it costs nowPC

Enshrouded price after 1.0: what it costs now

Enshrouded hit 1.0 today, but the Enshrouded price rose on 8 September and the key resellers have not followed. What our nine tracked sellers show, and whether to buy now.

Oct 15, 2026
Starfield price history: the sub-$20 window, and who set itPC

Starfield price history: the sub-$20 window, and who set it

Our Starfield price history shows one reseller set the all-time low over five weeks in late summer 2026. What a good price looks like now, and why Game Pass comes first.

Oct 14, 2026
Boltgun 2 price: buy the sequel, or the cheap first game?PC

Boltgun 2 price: buy the sequel, or the cheap first game?

The Boltgun 2 price has no cheaper route on launch day — our record shows one listing, unmoved since September. The first game is the bargain, but a smaller one than it was.

Oct 14, 2026
Rust price: why the cheap keys vanished, and when to buyPC

Rust price: why the cheap keys vanished, and when to buy

The Rust price has two answers: an official one that barely moves, and a reseller one that sat in single digits for 95 days and then disappeared. Our record shows both.

Oct 13, 2026
Planet Zoo 2 price: which edition, and when it gets cheaperPC

Planet Zoo 2 price: which edition, and when it gets cheaper

Planet Zoo 2 is out today. The Planet Zoo 2 price splits two ways, the cheap pre-order keys stopped existing three weeks ago, and the original got dearer as the sequel landed.

Oct 13, 2026

Top games right now

All rankings →
  1. 1Counter-Strike 2Free
  2. 2Dota 2Free
  3. 3PUBG: BATTLEGROUNDSFree
  4. 4Grand Theft Auto V Legacy—
  5. 5Terraria$2.16
  6. 6Rust$25.85
  7. 7Team Fortress 2Free
  8. 8Black Myth: Wukong$36.52
  9. 9HELLDIVERS™ 2$25.07
  10. 10ELDEN RING$49.41
  11. 11Apex Legends™Free
  12. 12Left 4 Dead 2$9.99
  13. 13Stardew Valley$13.81
  14. 14Wallpaper Engine$3.99
  15. 15Euro Truck Simulator 2$9.89
  16. 16Dead by Daylight$6.84
  17. 17Red Dead Redemption 2$11.00
  18. 18Baldur's Gate 3$57.57
  19. 19Phasmophobia$17.30
  20. 20War ThunderFree
  21. 21Call of Duty®—
  22. 22ARK: Survival Evolved$13.48
  23. 23Among Us$2.99
  24. 24The Forest$19.72