Calcium Chaos: Derailed

This twin-stick roguelite is a blast to play, with its over-the-top weapons, wacky characters, and chaotic combat.
The game's weapon system is a standout feature, allowing you to combine different weapon types to create some truly absurd and powerful combos. The randomized levels and boss fights keep things fresh, encouraging experimentation and replayability.
While the game can be a bit challenging at times, the sense of accomplishment when you finally defeat a tough boss is incredibly satisfying. However, some performance issues can occasionally dampen the experience, especially on lower-end systems.
The game's charming art style and quirky characters add a lot of personality to the world. The train hub, in particular, is a delightful place to explore and interact with various NPCs. The music perfectly complements the game's chaotic and whimsical atmosphere. The energetic and upbeat tunes pump players up for intense combat, while the more subdued tracks create a sense of mystery and tension during exploration.
Despite its minor shortcomings, Calcium Chaos is a highly enjoyable roguelite that offers a unique and humorous take on the genre. Its innovative weapon system, engaging combat, and charming art style make it a worthwhile experience for fans of twin-stick shooters. Must try!

A fun roguelite with a crazy story and where you combine different weapons into new weapons. It has 2 hardcore achievements, for completing the game on hardcore without losing a life. You can save scum to make this not missable.
Approximate amount of time to 100%: 6h+, depending on skill level and save scumming or not
Estimated achievement difficulty: 7/10
Minimum number of playthroughs needed: 2
Is there a good guide available: No, but you don't need a guide
Multiplayer achievements: No
Missable achievements: Yes, there is an achievement to finish the game on hardcore mode without losing a life
Grinding Achievements: No
DLC-Only achievements: No
Speedrun achievements: No
Time-gated achievements: No
RNG-achievements: No
Does difficulty affect achievements: Yes, there are 2 achievements for hardcore mode
Unobtainable/glitched achievements: At this moment 2 achievements are bugged (writing this on 15 November 2024), but they should be fixed in the next patch
Calcium Chaos: Derailed is a fun roguelite game in which you are on a quest to save the world from the necromancer and her undead army. In each level you will complete fighting sections with visiting shops, recruiting new people for your train and more like that.
I had a lot of fun while playing through the game, which took me around 3 a 4 hours. However, it started to feel a bit the same around the end. There are a few weapons and yes with upgrades they change a little but not enough to make them feel different. I had 3 preferred weapons from like the 7 or 8 main weapons and then it was just combining those with others to change their effect a little. This is totally fine but mentioning on the Steam store page how many combos there are possible might give the wrong impression and higher the expectations.
What I love about the game was the humor and the crazy boss fights. They felt different from each other and they did crazy things. Also the artwork and the passive upgrades were very nice! I also love that the game isn't too long. It doesn't overstay its welcome!
To unlock all the achievements you have to play 2 times through the game. First on any difficulty you like, and after you beat the game the hardcore mode becomes available. This is directly why the game is so challenging, there is an achievement to beat the game on hardcore mode without losing a life. You can backup your save from time to time to make this a bit easier, but it still will be such a challenge. Especially the last boss fight.
The other achievements are for most of the things you'll do while completing the game, leveling up your weapon to the max level, having 10 passives at the same time, find the other recruitments, beat the bosses. There are hidden rooms, an an achievement to find 1 and to find 6 of them. They are not in the second area but in the other areas you can find secret rooms that will not be visible on your map. And last but not least, there is an achievement for buying every item from Sam on your train. I missed that in his wagon he has a shop as well, which unlocks new passives that can spawn in the levels. Highly recommend checking his shop out early on!
I give Calcium Chaos: Derailed 3 out of 5 stars.
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Missi the Achievement Huntress: Reviews & guides

good twin stick Roguelite that local coop what. gonna be fun coop game at parys.
as well you can trun object into milk so game of the year

I was invited to play this game and it has gone so far beyond my expectations! The dialogue is full of puns, you can choose fun decorations for you train, the weapon combinations are ENDLESS, and the list goes on. I haven't had the pleasure of playing co-op (yet) but am very excited for setting some time up to try that out as well! If you're looking for a cozy game with a decent amount of combat challenge, this is the game for you.
Thank you to the publisher for reaching out and offering me the game. I will definitely be paying it forward and getting the game for others to enjoy as well!

I just completed the game's first area, and I cannot wait to play more!
It's super fun playing local co-op with my flatmates; it's more of a collaborative co-op experience than a competitive one, which I really like.
There is also the weapon combining thing, super neat that you can combine items in whichever way you want, and the more you combine the more... CHAOTIC... it gets :D

Twin-shooter that makes progress easy with strong weapons and useful gadgets.
The game begins with Robin crashing a train into Amir's house. These two are the playable characters, and you can select which one to play on the train, although other characters will appear later. It does not matter because everyone plays the same way. The train is also where you choose levels. They must be played in order, although you can always replay them.
The gameplay revolves around the twin-shooter mechanic. Aside from movement, you can dash through holes and evade opponent projectiles. You do not have a personal weapon because you are given two random weapons every time you start a stage. The bad news is that if you wish to use another weapon, you must access your inventory and switch manually; the good news is that weapons can be combined.
This can be done in workshops, and the whole mechanic is similar to upgrading. The first weapon you choose will always be the primary, while the second will be sacrificed to upgrade it. There is no cost for doing this, and you can easily disassemble them if you are dissatisfied with the results.
A weapon can be upgraded multiple times, although this is earned gradually as you progress through the game. The fun part is that you might get different results depending on the sacrificed weapon, However, the choice of weaponry is limited, so you will most likely choose one that works and stick with a combination from start to finish. Alslo, the sixth upgrade is broken and doesn't unlock even when you grab the toolbox.
The game takes through four worlds, each with five stages. You start in the suburbs, continue on to the jungle, and so on. Main enemy are skeletons in various shapes and forms, and some new ones are introduced in each world.
Stages are made up of arenas that close off their exits and spawn enemies as you enter. After defeating everyone, exits become available, and you can choose where to go next. There is a map to help you navigate the various exits, although each stage only comprises about 7 rooms. It’s all very straightforward with an occasional bonus room with a challenging fight or free chests.
The reward for clearing a room is a box or chest containing shards. Some of these shards can also be obtained by destroying destructible assets. Sometimes you will locate a more important-looking chest that also contains an item. These provide a little advantage, such as faster speed and increased critical hits, and you can hold multiples of the same type.
The goal of each level is to find a signpost that will allow you to progress to the next stage. Like similar roguelite games, you can sometimes choose between two paths They feature icons that show what you may expect, such as bones representing basic stages with enemies, a fork where you can obtain free things, and special areas where you can discover specific weapons, such as a feather in a chicken coop.
Aside from stuff and weapons, you can find abilities if you go to the right place on the map. These are not that useful because you need to fill up the bar before you can use it. This is done by killing enemies.
The primary goal is to reach the exclamation point at the end, when you must defeat a bunch of enemies or a boss to receive a cool reward. For example, the first level provides you a new train cart, while the second introduces a new crewmember who sells new items.
After completing the entire stage, all objects obtained will be crushed and transformed into milk cartons. These are used in vending machine in the train to purchase useful gadgets such as marker that shows the signpost or portable workshops. Once bought, they will always be active.
One bug might cause some frustration. Sometimes, the stage's objective doesn't show up, so you won't be able to finish the stage or continue. All you can do is return to the train, but in this case you lose all rewards. There's also some strange gadget that's supposed to show something, but I never noticed anything. It must be one of rare broken features in the game.

This game is really fun to play with friends! The different weapon combinations gave me unique experiences each time I played. Also the music and cartoon style art are lovely