Koya Rift

Koya Rift

Zach Kehs (SunnyKatt) · 2014 · Indie

PC
5 user reviews20% · 5
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$0.65-78%
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About Koya Rift

Note: Koya Rift is not in active development. It first released in 2011, and was last updated in 2012.---Koya Rift is a roguelike 2D shooter-platformer. Levels are procedurally generated, and the difficulty is tuned as you play, to make the game more difficult when you win, and easier when you lose. In Koya Rift, the player must enter a hostile planet and destroy an alien race so the planet can be colonized. Each run, the player is dropped off at the surface and must venture into procedurally generated caves, earning upgrades and buying units as they progress. The goal of the game is to provide a challenging, yet casual experience that’s easy to pick up and put down.
A game of Koya Rift is pretty straightforward – you find yourself above ground standing in front of one of the delivery pods from the mercenary mothership. Your minimap hides the area below ground – and you have no idea what awaits you. Below ground lies a web of tunnels and caverns that is different every single time you play. Procedural generation isn't just in the level – all of your enemies will seem different too. Their size, speed, color, health, damage, and weapon behavior will be unique for each one you fight. Your own weapons are generated the same way, so you must adapt to what you have when approaching a fight. You have to venture down into the unfamiliar cave system and eliminate all of the Phantom Crystals (Where the enemy soldiers are grown). Unfortunately the Phantoms are hunting you the whole time, while their crystals evolve and grow. If you manage to destroy all the enemy crystals, you win the level.
Don’t get too proud though – if you beat it too easily the game will know and will be sure to adjust the difficulty for next time. Game difficulty in Koya Rift is complex – it’s not a simple modification to the amount of health you have, and it isn't a simple easy-normal-hard scale. Difficulty is modeled as a precise measurement that expands near-infinitely in either direction in this game. Difficulty adjustments affect almost everything in game – from the reaction speed of the Phantoms, to the speed at which they grow and evolve, to the cost of your allies, the experience they need to level up, the accuracy, size, fire rate, and density of your energy weapons, the rate of health recovery, the effects of special weapons, the size of the levels you play on, the health and damage of your enemies, the speed and fragility of your allies, the cash value of killing an opponent, the swiftness and force of enemy raids, and even more. There are so many values that change, and when they do change, they change with such subtlety that you will not be able to pick out exactly why this next game seems like more of a challenge for you than last.

What Steam players say

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

✦ AI summary

Players describe Koya Rift as a buggy, unpolished game with significant technical issues including crashes, broken audio settings, and progress that doesn't save between sessions, all without being marked as Early Access. Beyond the bugs, the game suffers from poor explanation of mechanics, unclear progression requirements, and underwhelming gameplay that feels half-baked with little to recommend it over the vast selection of better alternatives available.

Not recommended Aug 15, 2020
Basically a flash game. With a bit more polish and variety this might be worth a poo.
2 found this helpful
Not recommended Jul 8, 2025
there are a lot of broken obnoxious things going on in this game and i'm not even really talking about the annoying size and scale of all the characters and the stage and your viewpoint in the game and every action you take in the game. first I try to go into the options and tone down the volume but this just ends up breaking every aspect of the volume in ways i cant really put into words. some weapons didnt care what volume setting I had chosen, the music in the menu certainly didnt care. if you do choose to play the game which i dont advise leave everything at 10 and just use volume mixer. so you are doing the game and it isnt clear where things are going, you beat the stage with ease and maybe that was the tutorial stage. play battle as the campaign is locked stating you need to simply complete more battles to unlock the campaign but with no set number indicated and me having already played and completed a handful of really annoying uninspired painful to look at levels with totally wanked sound and no options menu in game I didn't really care to continue further. the game presents some interesting ideas but seemingly doesnt use them whatsoever in the battle mode it forces you to…
1 found this helpful
Not recommended Mar 23, 2021
[b]Koya Rift[/b] is an unpolished buggy game that is NOT marked as Early Access. It hasn't received an update in many years. Everytime I open the game it has forgotten my progress and wants me to enter a player name and start at the beginning. An easy example of a 100% reproducible crash to desktop is this: Finish the first battle. Start a second battle and follow the on-screen prompt to press "W" to get more information on the weapons. If you press "W" again the game crashes 100% of the time. Here's a screenshot: https://steamcommunity.com/sharedfiles/filedetails/?id=2433544571
1 found this helpful
Not recommended Jun 28, 2017
i think i would enjoy this game more if it didnt crash all of the time
1 found this helpful
Not recommended Feb 23, 2024
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Not recommended Jun 7, 2021
Really wouldn't recommend. Everything seems to work properly, but there's just nothing here that's particularly interesting in my opinion. This feels very half baked and there are some really bizarre design decisions going on. Nothing is explained to you particularly well, so you don't really know what to do. As an example, you can buy turrets and stuff to throw down, and are told to protect your spawn thingy. Ok, protect it from what? I've literally never seen an enemy on the surface. And why on earth am I required to play some arbitrary number of "battles" before I can unlock the campaign? Just doesn't make sense to me. All in all, I can't recommend this game in 2021. There is such a volume of games that are so much better that you could play, both paid and free.

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