

Radium 2
Develobster · March 2, 2017 · Indie, Action, Minimalist, Physics, Arcade
Buy the Radium 2 key for Steam from Kinguin at $1.70 — the cheapest of 2 stores we compare.
Where to buy Radium 2 — official stores
Cheapest Radium 2 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.
Radium 2 price by region
Radium 2 costs £0.91 in the United Kingdom, €1.05 in Europe (EUR), $1.70 in the United States, $1.70 in Georgia (USD), CA$3.89 in Canada, NZ$4.49 in New Zealand, A$4.50 in Australia, zł5.85 in Poland and R$10.49 in Brazil right now.
| Region | Best price | Official store | Key shop | Stores |
|---|---|---|---|---|
| £0.91 −63% | £2.49 | £0.91 | 2 | |
| €1.05 −65% | €2.99 | €1.05 | 2 | |
| $1.70 −43% | $2.99 | $1.70 | 2 | |
| $1.70 −22% | $2.19 | $1.70 | 2 | |
| CA$3.89 | CA$3.89 | — | 1 | |
| NZ$4.49 | NZ$4.49 | — | 1 | |
| A$4.50 | A$4.50 | — | 1 | |
| zł5.85 −57% | zł13.49 | zł5.85 | 2 | |
| R$10.49 | R$10.49 | — | 1 |
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 Radium 2
Radium 2 is a physics-based puzzle game where you guide a ball through 130 levels using two tractor beams that flip between attracting and repelling based on polarization changes. Master the challenging mechanic of reversing gravity and beam direction to navigate intricate level sections in this skill-testing experience inspired by particle physics.
Ra² is a physics based skill game with puzzle elements, inspired by the smallest elementary particles of our universe.
Radium 2 — game info
- Platforms
- Windows, macOS, Linux / SteamOS
- Player modes
- Single-player
- Controller
- Full controller support
- PC Game Pass
- Not included
DLC & expansions
🎁 Complete the collection
Base game + 0 of 1 DLC at today's best prices (some DLC unpriced).
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
I really recommend Ra² if you like to challenge yourself. It's hard to master all the levels with a 3-point rating. In any case, it takes a lot of perseverance and sensitivity. The more complex levels also require a good memory. If you like it even more challenging, you should try to climb up the leader board. The difficulty arises out of the rapid changes in…[list] [*]control (tractor beam vs. repulsion beam) [*]location of the ball (portals, acceleration fields, …) [*]map orientation or rather gravitational direction [*]game situation (precision vs. speed)[/list] Trifles like the atoms with their correct atomic number (regarding the number of switches) show the developer's love of detail. Furthermore, there are letter achievements for writing funny words into the showcase of your profile.4 found this helpful
Huge step up from the original Radium in multiple ways: - More difficult stages + more demanding 3-star times - Leaderboards - An actual soundtrack Overall, this was worth the 100% completion. Really excited to see what's next in Radium Lux.3 found this helpful
Note: I have a lot of hours booked on this because my card idler got "stuck" on it. I got the game in a bundle. Radium 2 (the sequel to Radium) is a simplistic skill/puzzle game where you direct a ball using only left and right controls. The game completely masters the "easy to play, difficult to master" aspect of game design and the developer should be applauded for this. Personally I found the game to be a little frustrating, and the minimalist graphics in 2017 put the game towards the back of the pack in an era where games like Warframe and so on are completely free. I can't recommend this for most gamers because the simplistic/minimalist design lacks appeal, especially not for $5. I recognise the developer has a lot of talent that would be much better put to use working in a AAA development house rather than being wasted pushing indy games into shovelware bundles, so I hope they'll continue advancing their career to make greater contributions to the industry.3 found this helpful
Pie rating 5/10 Pros: You will only play this for the letter achievements Cons: You will only play this for the letter achievements3 found this helpful
downgrade from the first game, radium 2 levels difficulty are heavily based on memory instead of precision, basically every level is just a random maze2 found this helpful
Radium 2, developed and published by Develobster, is a sharply focused arcade-puzzle experience that thrives on minimalism, both in presentation and design philosophy. Rather than overwhelming players with systems or narrative framing, it narrows its attention to a single, elegant mechanic: guiding a small sphere through intricate stages using opposing force beams. This simplicity is deceptive, because beneath the clean exterior lies a demanding, precision-driven game that constantly challenges your reflexes, timing, and spatial reasoning. It’s the kind of experience that feels immediately understandable yet takes significant effort to truly master. The central mechanic revolves around manipulating the sphere’s movement using attraction and repulsion forces, effectively allowing you to “pull” or “push” it through hazards and tight pathways. Early stages act as a gentle introduction, letting players experiment with movement and momentum, but the game quickly evolves into something far more exacting. One of its most interesting twists is the polarity system, where interactions with certain elements flip your control dynamics. Suddenly, familiar inputs behave differently, forcing you…
Community reviews
0 reviews
Sign in to write a review.
No reviews yet. Be the first to review this game.
More like Radium 2
News
BlogSilkMU is our new partner: MU Online Season 6 in a browser tab
SilkMU, a MU Online Season 6 server that runs in a browser tab or as an app, opened on 6 November 2026 and is now our partner. What it offers, what is free and what costs WCoin.
Nov 13, 2026
PCGames like Dying Light, where nightfall changes the rules
Games like Dying Light are easy to find if you only want parkour or only want zombies. These eight keep the part that matters: a city that becomes a different place after dark.
Nov 13, 2026
PCGames like Portal 2, where one idea carries the whole game
Games like Portal 2 all share one habit: teach a single impossible trick, then spend a campaign breaking it. From rewinding objects through time to Escher geometry that loops back on itself.
Nov 13, 2026
BundlesPlanet Coaster DLC: skip the collection, buy the packs
The Planet Coaster DLC catalogue closed in 2019, so there is no curve left to wait out. Our record shows the collection bundle costs far more than assembling the same packs one by one.
Nov 13, 2026
XboxToxic Commando Game Pass: subscribe, or buy the key?
The Toxic Commando Game Pass add landed on 12 November. Our price record since late September shows the key route barely moved, which changes what a subscription is worth.
Nov 13, 2026
PCGames like Titanfall 2, for the pilot or for the Titan
Titanfall 2's campaign changed its own rules every mission. Games like Titanfall 2 that keep one part of it — the wall-running, the mech, or a campaign that never settles.
Nov 12, 2026
PCGames like It Takes Two, where the second player is the point
It Takes Two cannot be played alone, and that is the whole design. Games like It Takes Two that give each player a different job — including one that makes do with a single pair of hands.
Nov 12, 2026
XboxFootball Manager 27 Game Pass, and what the old FMs now cost
FM27 landed on 10 November, and Football Manager 27 Game Pass covers it on PC from day one. Steam has stopped selling FM26 and FM24 — our price record shows what that does.
Nov 12, 2026
BlogSilkMU ჩვენი ახალი პარტნიორია: MU Online Season 6 პირდაპირ ბრაუზერში
SilkMU, MU Online-ის Season 6 სერვერი, რომელიც ბრაუზერში ან აპლიკაციად თამაშდება, 6 ნოემბერს გაიხსნა და ახლა playze-ის პარტნიორია. რას გთავაზობს, რა არის უფასო და რა ღირს WCoin.
Nov 13, 2026
PCTekken 8 ღირს თუ არა: 91 ქულა და შერეული შეფასება
Tekken 8 ღირს თუ არა, როცა კრიტიკოსებს 91 ქულა აქვთ დაწერილი, მოთამაშეებს კი „შერეული"? ფასი, ონლაინის მდგომარეობა და უკეთესი ალტერნატივა.
Sep 24, 2026
DealsStellaris იაფად: ოცდახუთი დამატება და ერთი გამოსავალი
Stellaris იაფად ყიდვა საბაზისო თამაშის შემთხვევაში მარტივია. ძვირი დამატებებია — და მათთვის არსებობს ვარიანტი, რომელსაც ბევრი ვერ ამჩნევს.
Sep 24, 2026
PCARK ფასი: Evolved თუ Ascended — რომელი ვიყიდოთ
ARK ფასი ორი სხვადასხვა თამაშის ფასია. რომელი ჯობია ქართული სიიდან, სად არიან მოთამაშეები და რატომ არ ღირს ახალ ვერსიაზე გადახტომა.
Sep 24, 2026
DealsCivilization 6 იაფად: რომელი დამატება ღირს მართლა
Civilization 6 იაფად ყიდვა მარტივია — საბაზისო თამაში იაფია და იაფად რჩება. რთული ის არის, რომ ცხრამეტი დამატებიდან სწორი აირჩიოთ.
Sep 24, 2026
FreebiesCS2 უფასოდ: რა ღირს სინამდვილეში Prime
CS2 უფასოდ ითამაშება საქართველოდანაც და ეს დემო არაა. ფული მხოლოდ Prime-ს სჭირდება — აი, რას იძლევა ის და ვის ღირს.
Sep 24, 2026
PCCuphead ღირს თუ არა: სირთულე, DLC და ორზე თამაში
Cuphead ღირს თუ არა: ექვსივე ქართულ მაღაზიაში ერთი ფასია, მეგობარს კი ასლი საერთოდ არ სჭირდება. სირთულე, ერთადერთი დამატება და როდის ვიყიდოთ.
Sep 23, 2026
DealsRimWorld იაფად: ბაზა, ხუთი დამატება და სწორი რიგი
RimWorld იაფად ყიდვა დამატებების რიგზეა დამოკიდებული, არა ფასდაკლების ლოდინზე. რომელი ხუთიდან ღირს ჯერ და რომელ მაღაზიას აქვს ფასდაკლება.
Sep 23, 2026New releases
All new releases →- AION 2Sep 30, 2026Free
- Onimusha: Way of the SwordSep 25, 2026$37.77
- Well DwellerSep 22, 2026$15.99
- Normal Golf GameSep 21, 2026$7.99
- AniimoSep 16, 2026Free
- WARDOGSSep 10, 2026$29.73
- Welcome to ElderfieldSep 10, 2026$13.18
- The Blood of DawnwalkerSep 2, 2026$57.85
- STAR WARS Zero Company™Aug 27, 2026$44.19
- Shadow DungeonAug 26, 2026$5.50
- How to FishAug 20, 2026$6.84
- Mortal Shell IIAug 20, 2026$34.86
- Assassin's Creed Black Flag ResyncedJul 9, 2026$37.50
- Capsule LoverJun 12, 2026$3.59
- SubZeroMay 29, 2026$3.85
- Oaken TowerApr 28, 2026$9.99
- Myth of Empires: ThroneApr 16, 2026Free
- AETHUSMar 6, 2026$14.99
- Might & Magic Fates - Heroes TCGFeb 16, 2026Free
- Diablo II: Resurrected – Infernal EditionFeb 11, 2026$25.99
- HumanitZFeb 6, 2026$5.02
- 月华辉映之刻Dec 5, 2025$11.99
- ROUTINEDec 4, 2025$11.21
- 轮回修仙传Nov 28, 2025$3.99
Top games right now
All rankings →- 1Counter-Strike 2Free
- 2Dota 2Free
- 3PUBG: BATTLEGROUNDSFree
- 4Grand Theft Auto V Legacy—
- 5Terraria$2.08
- 6Tom Clancy's Rainbow Six SiegeFree
- 7Rust$20.19
- 8Garry's Mod$6.23
- 9Team Fortress 2Free
- 10Black Myth: Wukong$35.78
- 11HELLDIVERS™ 2$23.99
- 12ELDEN RING$38.88
- 13Apex Legends™Free
- 14Left 4 Dead 2$9.99
- 15Stardew Valley$12.11
- 16Wallpaper Engine$3.93
- 17Cyberpunk 2077$17.99
- 18Euro Truck Simulator 2$4.99
- 19Dead by Daylight$6.85
- 20Red Dead Redemption 2$13.89
- 21The Witcher 3: Wild Hunt$9.77
- 22Baldur's Gate 3$53.72
- 23Phasmophobia$15.77
- 24War ThunderFree
Buy at Kinguin 












