ChromaGun

I recommend it, yes.
Only after you've played Portal, Portal 2, Talos Principle, Road to Gehena, Qube, and Qube 2.
So, after you've played all the good puzzle games, you can also play this more mediocre one.

ChromaGun was a lot of fun. I am pretty picky about puzzle games because I find most of the time they try to be overly complex bordering on pretentious. ChromaGun didn’t do that. I got stumped all of twice and was able to figure out how to proceed all on my own without guides or videos. The difficulty curve just felt well done as new types of puzzles are added often without any explanation, or with very little, yet they’re very intuitive and follow common sense. The humour is spot on and the person who voiced the overseer did a fantastic job. There isn’t much in the way of a story to ChromaGun but I didn’t really mind. The game has a great pace to it. Each room takes anywhere from 30 seconds to 5-10 minutes. Even if you don’t like the room you’re in it will be over pretty quickly and you’re on to the next one. I had only two major gripes with the game: one being that you couldn’t wipe colors and the other being a timed puzzle in the last level. The lack of ability to wipe away colors means that if you screw up you have to restart the room. This may not seem like a huge deal since the rooms don’t take a long amount of time to finish but it is still annoying and something that could have been avoided or fixed. As for that last level I wasn’t too angry. I hate timed missions on principle and I did have to restart the room multiple times trying to beat the clock but as I said before the inconvenience didn’t last long. The graphics are simple but well done. Most of the rooms are majority white so as to show off the colors of the paint but the droids are well done and the few bits of the game that has something to show off were good. There is good detail on fruit that is left on desks and the clothing on people for instance. The detail on peoples faces and on plants could have been better though.
I played ChromaGun on Linux. It never crashed on me at all. I didn’t notice any glitches or bugs. Alt-Tab didn’t work. It opened on the wrong monitor once but after that never did it again. The only graphics options are for resolution; motion blur; and a toggle for image effects. There is no manual save option. The game auto saves after each room is completed which works out well given the short time each room takes. I played version 2017.05.12 Build 120 of ChromaGun. It uses the Unity engine. It takes up 1104MB of disk space. During play my GPU usage was 27-66%; my VRAM usage was 797-900MB; my CPU usage was 2-21%; my RAM usage was 2.9-3.2GB and my framerate ranged from 71-126 FPS.
I recommend ChromaGun to anyone who enjoys games such as Portal. It lacks the story of Portal but the gameplay more than rises to the challenge. I finished the story mode in 4 hours and 40 minutes. I paid $13.99 CAD for the game and find that to be great value. Even $20 would have been worth it. There is a demo available that I implore people to try if you’re interested. The demo is Windows only but worked with Proton for me on Linux.
My Score: 8.5/10
My System:
AMD Ryzen 5 2600X | 16GB DDR4-3000 CL15 | MSI RX 580 8GB Gaming X | Mesa 19.3.4 | Samsung 850 Evo 250GB | Manjaro 19.0.0 | Mate 1.24 | Kernel 5.5.2-1-MANJARO

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chromagun is a competent 1st-person puzzler where you mix colors to paint surfaces and droids to move them out of the way, open doors, etc. the presentation is very good, I liked the music and the narrator a lot. settings are okay, separate volume sliders, rebindable keys, etc. no fov or brightness sliders though, and not much to tweak the graphics with, but it runs well even on an old system. the 8 chapters with 58 levels should take maybe 5 or 6 hours.
what makes it only a cautious recommendation is basically the lack of the local equivalent of undo, coupled with no checkpoints or saving and a lot of timing elements, as these can turn a fun game into a chore of replaying sections to get to where you dared to make a mistake. each chapter has 6-9 levels, but your progress is only saved between them, though levels are relatively short, so a few restarts may or may not cause too much of an annoyance.
the game works like this (there are of course more complex situations later): paint a wall red, paint a droid red, droid goes to wall, so you can open the door it was blocking, or the droid will activate a pressure plate this way, so you can pass through the door yourself. you have red, yellow and blue, and can mix them to create further colors as necessary. if said surface (or droid) runs out of mixable colors, it turns black and nothing else can be done with it any more, and you might have to restart the level as well.
droids are mostly harmless initially, touching them is fine too, but once they're aggroed (either by default or after getting shot), they'll go after surfaces matching their own color, and if you're nearby, you as well, though walls within reach take priority.
there's no timer as such, except for a few hurry-up sections (and unless you're playing speedrun mode), so you can take your time to figure out what to do in most cases, but there's still a lot of timing involved, running around, being chased by droids out to get you until you can attach them to a wall, in a way that still lets you finish the level, not just save your own skin. there's no health bar, but you die after a few hits.
ideally, the game would drop a checkpoint after every room, or let you quicksave anytime, or maybe have an easy mode for this and normal mode for how the game works now. it wouldn't make the puzzles easier, just cut down on unnecessary tedium, repetition and frustration, and would add the fun of experimentation without having to re-do half the level again, no matter how short they are for the most part. and the new mechanic in chapter 8 could've used a better introduction than the first level there.
if you're jonesing for a 1st-person puzzler, there's a demo with the first 10 levels, that should give you some idea of what the game is like. it's certainly not bad, there are some clever puzzles, and if you're not bothered by the stuff I mentioned above, give it a shot. otherwise maybe think twice about it, though after I got over my initial frustration and familiarized myself with the mechanics, I enjoyed it more, except the actual against-the-clock sections, and if I can complete a game like this, anybody can.

It's genuinely like playing a budget version of Portal. Yet not a Portal ripoff, very fun to play.

ChromaGun is a nice little puzzle game that some would say tries to replicate humor present in Portal, but ChromaGun focuses primarily on color blending and some quick thinking. It's an alright game, something I wouldn't necessarily rush to get but if you want something that isn't too hard of a puzzle game and somewhat witty, this might be a decent pick to get on sale.

ChromaGun is an incredibly short game (around five hours max), but it's well worth trying if you're into complicated puzzle games such as that of the Portal series or Enigma Prison. While I do recommend it, I think it's well in need of some changes, so this review is more aimed toward the developers rather than prospective players. The game is very complex, and if you're interested, I'd suggest giving it a spin, as the price ($12) is a steal. Anyways, without further adieu, here are some little critiques I had throughout my playthrough.
1) The Levels Are EXTREMELY Specific
One of my main gripes with this game is how specific the levels tend to be. For example, if you need to bring a workerdroid from one spot to another and that workerdroid dies, what happens? In most games, another one would spawn in the original location, or maybe a "Game Over" would appear. In ChromaGun, nothing happens. You just sit there and are expected to restart the level from the pause menu (which, by the way, is super annoying). Not to mention that one slip-up can cause you to restart the ENTIRE level from scratch.
Not that this is always a bad thing, however. The game can be very difficult when it wants to, so the limited solving paths makes sense. However, be prepared to restart the level A LOT. Just part of the process.
2) The Wacky World of ChromaTech
ChromaGun tends to be quite clever with its use of colors and mechanics, and is especially exemplified with the inclusion of devices that automatically paint the wall after a short time. This opens up the puzzles into another dimension, and it's a well appreciated addition. But they're also a little annoying, but I think that's just me.
One thing I REALLY wish this game did was expand on the workerdroids. It's mentioned throughout the game that the workerdroids are constantly in pain and slaves to the testing center, which led me to believe that they would stage some sort of revolution near the end of the story. Sadly, this never happened, but I'm hopeful for a sequel where they explore this.
3) Sound Design
The sound design of ChromaGun will make you lose your mind. Throughout the game (which, by the way, I did finish in 4.5hrs around a year ago), the same soundtrack plays practically all the time, aside from a few exceptions. I actually had to turn off the music to concentrate cause it was so maddening. However, the music was bad- the music was great, rather. It fits the environment and does build an atmosphere to the game. However, it became annoying, much like most of the stuff I've been mentioning.
Overall, ChromaGun is not for the faint of heart. It's built for puzzle-enthusiasts, and when you find the end, you get a welcome surprise. I realize that I've mainly been listing negatives, but this review is more of a critique on what to improve rather than one for players. Deep down, I want this game to be better. On all other fronts, it's a great game.
~Shep

I’ll be honest, this game is a little too short. I do like how the game feels similar to the Portal series, and that one Portal reference is thrown in as an easter egg(you know, the one cake in the ending of Portal 1 that you never got to eat). Also the game’s mechanics are nice on their own, too. Like how you can use the paint gun to color in a segment of the wall/floor, and the “worker droids,” as the game calls those floating spherical robots, are attracted towards the painted walls depending on the color your gun uses on it. Like I said, I feel as if the game is way too short as in it has too few levels and for the most part it feels kinda… bland. Of course there are some interesting parts here and there, but that’s just about it. Also I’m really not a fan of the usage of stock music in the game. I mean there are some original songs in there but they couldn’t give themselves enough time to make more? Anyway, if you wish to play this game I say go right ahead. Just… don’t get your hopes too high up.
In my opinion, this game is a 6.5/10. Not much going on, kinda boring with the atmosphere, and mostly empty/anticlimactic.