Radii

Radii

WormyMaple Games · July 29, 2022 · Action, Adventure, Platformer, 2D Platformer, Precision Platformer

Radii is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Positive93% · 15
This game is free to play. Get it on Steam →

Screenshots

Radii price

Radii is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Radii

Radii is a challenging platformer.

Explore an abandoned compound as a Radius, a spherical robot with a synthesized consciousness.
Manage energy and momentum traversing with difficult and precise movements, and discover what's been left for you.

Radii — game info

Platforms
Windows, macOS, Linux / SteamOS
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 Mar 11, 2024
⠀
9 found this helpful
Not recommended Jan 16, 2026
"Radii" is one of literally thousands of retro 2D platformers infesting Steam and lowering the average quality of all video games everywhere... and I'm not kidding. Searching for "platformers" on the Steam store page yields over 17,000 results! Is this one of the best of those? Absolutely not. On the upside this "platformer" isn't quite as lazy as most of them, even though it fails directly on technical quality merits. This minimalist/pixelcrap platformer doesn't follow the usual Mario Bros ripoff formula, but instead has you navigating puzzle platform levels with gimmicks around your momentum, limited numbers of jumps, so you need to manage your trajectory, momentum and energy levels to work out if you're going to bounce to where you need to go or not... this can be really challenging, but the incredibly weak technicals are probably what turned gamers away from this. That and the developer didn't bother finishing the game after they saw nobody wanted it. Platforming is an old, mostly dead genre, and this lacklustre experience, while it doesn't have an upfront cost, isn't saving the genre... it's no surprise this failed to capture any attention from gamers in the era of imm…
Recommended Feb 10, 2025
I've played this game for like 9 hrs and it's amazing. The graphics are amazing, same for the music. I love this game. I recommend it, this is really good. You can literally feel the tension and the world around you as you play. Incredible.
Recommended Jan 20, 2025
[i]This is my review, written after completing the first chapter (which is the complete version as of July 2026) of the game. I had already published a review before completing the game.[/i] [i]Radii[/i] is a beautiful Metroidvania-style platformer using momentum as its primary component for movement. Next to the unique (in this genre) way to move around, the ambience is the crucial piece of the puzzle that makes this game so memorable. The calming, minimal but defined visual atmosphere is harmonizing gorgeously with the melancholic and threatening soundtracks. Character and world design become secondary, yet important, performers of the experience [i]Radii[/i] offers. While visually most is still and sterile, audibly it is quite the opposite: vivid and emotional. Visually and auditive components are characterized by a gloomy mood that creates the feeling of unease. As a small, marble-like robot, it's up to you to conquer the almost empty science fiction building full of challenges (starting with the lack of a proper tutorial) and threats. (Unfortunately, the lack of deep lore leaves me with unsatisfied curiousity and wonder.) Whether it's platforming sections or boss fights – b…
Recommended Apr 30, 2024
Even though this game isn't a marketed as a metroidvania, it is one. The game is challenging and can feel a little unfair even as a lot of attacks kill the player instantly and save stations are sparse. The bosses are good for how the movement system but need some work. The platforming feels good and natural, and with additional settings (like one to display the currently held direction on the left stick) I bet it will feel really good to play. Currently, most areas in the game don't differ much in theme and graphics except for music and obstacles which I hope to see improved. The controls for the game could be better. The game is recommended to be played with a controller which is great for movement but horrible for aiming. It's so tricky to aim with the right stick that I switched to a keyboard and mouse at some parts. If you have a Steam Controller, it is perfect for this game.
Recommended Apr 4, 2023
[h1]Before I played Radii, I had a small pp, no friends, no gf, depression, and no life. These things havent changed, but the game is pretty good[/h1]

Community reviews

—

0 reviews

Sign in to write a review.

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

More like Radii

News

All news →
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
Steam Black Friday sale 2026: there isn't one. Buy or wait?Deals

Steam Black Friday sale 2026: there isn't one. Buy or wait?

There is no Steam Black Friday sale in 2026. Last year, the first in years without one, 42% of popular games were discounted on Steam anyway and the Black Friday price beat the Winter Sale for 47%.

Oct 12, 2026
Games that never go on sale on Steam, and the ones that barely doDeals

Games that never go on sale on Steam, and the ones that barely do

We checked Steam's full price history for 590 popular games. Only three have never been discounted, one by policy. These are the games that never go on sale, the ones that barely do, and the 122 that got pricier.

Oct 12, 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$25.81
  7. 7Team Fortress 2Free
  8. 8Black Myth: Wukong$36.46
  9. 9HELLDIVERS™ 2$25.04
  10. 10ELDEN RING$49.14
  11. 11Apex Legends™Free
  12. 12Left 4 Dead 2$9.99
  13. 13Stardew Valley$13.73
  14. 14Wallpaper Engine$3.99
  15. 15Euro Truck Simulator 2$10.20
  16. 16Dead by Daylight$6.83
  17. 17Red Dead Redemption 2$11.11
  18. 18Baldur's Gate 3$58.10
  19. 19Phasmophobia$17.27
  20. 20War ThunderFree
  21. 21Call of Duty®—
  22. 22ARK: Survival Evolved$13.45
  23. 23Among Us$2.99
  24. 24The Forest$19.70