
Calcium Chaos is a casual Twin-Stick Roguelite that takes you on a journey by train to confront the necromancer and her skeleton army. Get ready to explore a world filled with crazy weapon combinations and unexpected allies as you embark on an epic quest to save the world!
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0/day in the week to Jul 21 → 0/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Skeletons are invading, and your only defense is a toaster and a chicken! Embark on a whimsical adventure through a land plagued by pesky skeletons! Uncover weird and wacky weapon synergies to fight back against the bony baddies. Along the way, you'll gather a rag-tag group of heroes who will aid you on your mission- will you have the guts to stop the necromancer's plans and save the world?

Discover an arsenal of ONE MILLION different weapon combinations, from explosive toast to homing robot chickens, and customize your loadout to suit your playstyle as you wreak havoc on your enemies.

Recruit up to four friends to join your quest to defeat the necromancer, or measure yourself by playing alone.

Transform your train into a formidable base of operations for the friends you meet along the way, buy upgrades, decorate your train, and prepare your next mission!
Dive into procedurally generated levels filled with challenges!
Test your skills and adaptability as you strive to overcome the ever-growing threats that await you.
Genres
Engagement
Reviews
Themes across 40 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Just finished the game, it was a lot of fun! Really nice game and it will definitely not be my last playthrough! Now on to getting all the achievements, will try to get my partner to play it with me as well as i think it'll only make the game even more fun to play with friends or a partner. I had some slight issues with some weapon combinations as the game would start lagging quite a bit, nothing that was too frustrating and besides that, the gameplay was really smooth and enjoyable. I really like the soundtrack and artstyle - I especially like the different characters you can unlock. The designs are really cool.
This is a game, with a quirky theme. It plays like twin-stick top-down action adventure. On easy and medium modes it is very kids friendly. On hard mode a lot tougher (I've heard there is an even harder mode to unlock). Weapon combos are great fun. I've played quite a few couch-coop sessions with my two sons. We hooked up xbox controllers to the PC, and connected it to the big TV. This is where the game really shines. I recommend playing it coop with 2-3 players.
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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English**languages with full audio support
Hours played at review time, across 40 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Super fun & charming game. Great idea with the weird combination weapons.
i can see the love and passion put into this game but, i think that it fails short in terms of combat and just general interesting design
Great game to play with your kid! I play Calcium Chaos with my 5 year old daughter and we are having a blast. I have tried a lot of different games to co-op with her, and while CC does have a few usability quirks that would make me put down the game if playing on my own, it is just perfect for her and she enjoys the humour and feels really powerful, reminding me of playing these flawed gems of my youth.
Прошёл один раз полностью на нормальной сложности - игра просто великолепна: анимации, звуки, геймплей - в том числе ключевая фишка с комбинированием разных видов оружия, боссы тоже хорошие, есть над чем посмеяться, есть потенциал для реиграбельности, в общем крайне рекомендую
---{Graphics}--- ☐ You forget what reality is ☐ Beautiful ☑ Good ☐ Decent ☐ Bad ☐ Don’t look too long at it ☐ MS-DOS ---{Gameplay}--- ☐ Very good ☑ Good ☐ It’s just gameplay ☐ Mehh ☐ Watch paint dry instead ☐ Just don't ---{Audio}--- ☐ Eargasm ☐ Very good ☑ Good ☐ Not too bad ☐ Bad ☐ I'm now deaf ---{Audience}--- ☐ Kids ☐ Teens ☐ Adults ☑ All ---{PC Requirements}--- ☐ Check if you can run paint ☐ Potato ☑ Decent ☐ Fast ☐ Rich boi ☐ Ask NASA if they have a spare computer ---{Difficulty}--- ☐ Just press 'W' ☐ Easy ☐ Significant brain usage ☑ Easy to learn / Hard to master ☐ Difficult ☐ Dark Souls ---{Grind}--- ☐ Nothing to grind ☐ Only if you care about leaderboards/ranks ☑ Isn't necessary to progress ☐ Average grind level ☐ Too much grind ☐ You'll need a second live for grinding ---{Story}--- ☐ No Story ☐ Some lore ☑ Average ☐ Good ☐ Lovely ☐ It’ll replace your life ---{Game Time}--- ☐ Long enough for a cup of coffee ☐ Short ☑ Average ☐ Long ☐ To infinity and beyond ---{Price}--- ☐ It’s free! ☐ Worth the price ☑ If you have some spare money left ☐ Not recommended ☐ You could also just burn your money ---{Bugs}--- ☑ Never heard of ☐ Minor bugs ☐ Can get annoying ☐ ARK: Survival Evolved ☐ The game itself is a big terrarium for bugs ---{Controller}--- ☐ Keyboard and mouse ☐ Mouse ☑ Gamepad ☐ Other ---{Remote Play}--- ☐ Windows virtual machine ☐ Worked ☐ Issues ☑ Didn't try ---{OS}--- ☐ Windows 10 (GPU Passthrough) ☐ Native (Linux) ☐ Proton (out of the box) ☐ Proton (workaround needed) ☐ Played through GeForce Now ☑ Steam Deck ---{Conclusion}--- The game is well-balanced, I played in "normal" and I first thought the game was a bit too easy, but the last levels showed me I was wrong. Even when you lose, you can start again pretty fast, that makes it a good game for just some time playing. I didn't try the multiplayer part or the unstuck option. I guess that it can be useful when we have an issue, but I didn't notice any bug or issue during my play through. In short, if you want a funny game that got some customization and multiple weapons, go for it. ---{Information}--- Template source: https://github.com/Lemrac/game-review-evaluation-sheet Curator page: https://store.steampowered.com/curator/38087514/
This game is really fun. Solid twin stick controls, easy to get the hang of, and lots of fun. I haven't gotten too far but I would really like to see some bigger maps with different environmental obstacles, maybe for the boss arenas? It plays great on the Steam Deck, no issues at all and I get an estimated 6-7 hours on the OLED.
Decent enough twin stick shooter. The high points are the music soundtrack and coop support. The low points is that the writing and character development feels rather weak. The gameplay is par. Most of the games in this genre with better gameplay (Alien Swarm: Reactive Drop, Kill Knight) are grittier and dark, so it's nice to have a cutesy themed one, though if that's your jam, it's worth also checking out Assault Android Cactus. If you're just looking for great gameplay, you're better off with Alien Swarm: Reactive Drop and Kill Knight. But if you've exhausted those, or are looking for something cuter, this game is a good runner up.
I LOVE THIS GAME, I WISH SKELETONS EXISTED IN REAL LIFE!
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Players by region
Where this game's players are, estimated from review languages.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| — | 0 | — | — | |
| $41.8M | 140.8K | 96% | $14.99 | |
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| $752.4K | 2.4K | 63% | $14.99 | |
| $26K | 113 | 86% | $9.99 | |
| $9.6K | 27 | 100% | $14.99 |
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| $14.3K | 62 | 44% | $24.99 | |
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| $14.3K | 54 | 80% | $9.99 | |
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| $14.3K | 106 | 76% | $7.99 | |
| $14.3K | 235 | 90% | $3.99 |