Radium 2

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.

PC
Positive94% · 34
Best price 22 Fair price
$1.70-43%
lowest tracked $0.59
Kinguin Buy at Kinguin

Prices last checked

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Where to buy Radium 2 — official stores

Steam
Steam
Standard Edition · Steam
$2.99
Buy

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.

Kinguin
Standard Edition · Steam
$1.70
Buy

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.

Cheapest Radium 2 offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £0.91 −63% £2.49 £0.91 2
Europe (EUR) €1.05 −65% €2.99 €1.05 2
United Statesyour region $1.70 −43% $2.99 $1.70 2
Georgia (USD) $1.70 −22% $2.19 $1.70 2
Canada CA$3.89 CA$3.89 — 1
New Zealand NZ$4.49 NZ$4.49 — 1
Australia A$4.50 A$4.50 — 1
Poland zł5.85 −57% zł13.49 zł5.85 2
Brazil 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

✦ AI summary

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).

$1.70
to own everything

What Steam players say

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

Recommended Sep 30, 2017
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
Recommended Sep 20, 2021
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
Not recommended Aug 19, 2018
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
Recommended May 12, 2018
Pie rating 5/10 Pros: You will only play this for the letter achievements Cons: You will only play this for the letter achievements
3 found this helpful
Not recommended Apr 22, 2026
downgrade from the first game, radium 2 levels difficulty are heavily based on memory instead of precision, basically every level is just a random maze
2 found this helpful
Recommended Apr 18, 2026
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…

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