Runs on Windows
Windows Runs on Windows
Runs on MAC
Runs on Linux
Play on XBOX 360
Play on Wii U
Play on XBOX ONE
Play on Series X|S
Play on PS3
Play on PS4
HTC Vive Support
Oculus Rift Support
Windows Mixed Reality Support

Released | Developed by | Published by Zach Kehs (SunnyKatt)
Single Player Single Player
Multi-Player
Cross-Platform Multiplayer
Co-Op
Local Co-Op
Downloadable Content
In-App Purchases
Partial Controller Support
Full Controller Support
Achievements
Steam Trading Cards
VR Support
Steam Workshop
Cloud Saves
Stats
Valve Anti-Cheat Enabled
Steam Leaderboards
Includes Level Editor
Commentary Available
Captions Available
Action
Adventure
Fighting
Hidden Object
Horror
Family Friendly
Platformer
Puzzle
Racing
Retro
RPG
Shooter
Simulation
Sports
Strategy
Antivirus and Security
Animation & Modeling
Audio Production
Languages
Photo Editing
Reference
Typing
Video Editing
Video Production
Utilities
Educational
Game Development
Design and Illustration
Business and Office
Operating System
Includes Soundtrack
Includes Manual
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The content of games with a PEGI 3 rating is considered suitable for all age groups. The game should not contain any sounds or pictures that are likely to frighten young children. A very mild form of violence (in a comical context or a childlike setting) is acceptable. No bad language should be heard.
Video games that show violence of a slightly more graphic nature towards fantasy characters or non-realistic violence towards human-like characters would fall in this age category. Sexual innuendo or sexual posturing can be present, while any bad language in this category must be mild. Gambling as it is normally carried out in real life in casinos or gambling halls can also be present (e.g. card games that in real life would be played for money).
Game content with scenes or sounds that can possibly be frightening to younger children should fall in this category. Very mild forms of violence (implied, non-detailed, or non-realistic violence) are acceptable for a game with a PEGI 7 rating.
This rating is applied once the depiction of violence (or sexual activity) reaches a stage that looks the same as would be expected in real life. The use of bad language in games with a PEGI 16 rating can be more extreme, while games of chance, and the use of tobacco, alcohol or illegal drugs can also be present.
The adult classification is applied when the level of violence reaches a stage where it becomes a depiction of gross violence, apparently motiveless killing, or violence towards defenceless characters. The glamorisation of the use of illegal drugs and explicit sexual activity should also fall into this age category.
A U film should be suitable for audiences aged four years and over, although it is impossible to predict what might upset any particular child. U films should be set within a positive framework and should offer reassuring counterbalances to any violence, threat or horror. If a work is particularly suitable for pre-school children, this will be indicated in the BBFCinsight.
General viewing, but some scenes may be unsuitable for young children. A PG film should not unsettle a child aged around eight or older. Unaccompanied children of any age may watch, but parents are advised to consider whether the content may upset younger, or more sensitive, children.
Films classified 12A and video works classified 12 contain material that is not generally suitable for children aged under 12. No one younger than 12 may see a 12A film in a cinema unless accompanied by an adult. Adults planning to take a child under 12 to view a 12A film should consider whether the film is suitable for that child. To help them decide, we recommend that they check the BBFCinsight for that film in advance. No one younger than 12 may rent or buy a 12 rated video work.
No one younger than 15 may rent or buy a 15 rated video work.
No one younger than 18 may rent or buy an 18 rated video work. Adults should be free to choose their own entertainment.
Steam key will be sent to your email address and can be redeemed to download the full game.



Koya Rift is an action-packed platform shooter that is built around circular, adaptive gameplay that emphasizes replay value by challenging the player with procedural content tuned to their skill level. In Koya Rift, the player must enter a hostile planet and destroy an alien race so the planet can be colonized. Each game, the player is dropped off at the surface and must venture into procedurally generated caves, earning upgrades and buying units as he goes along. The difficulty adjusts precisely to the skill of the player over time, providing them with a consistent challenge. 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. The terrain of each level is procedurally generated (meaning it uses advanced algorithms to make itself different every time, providing nearly endless possibilities). Below ground lies a web of tunnels and caverns that is different every single time you play. It’s impossible to know what awaits you behind every corner. 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 – the Lances you bring along with you to levels are generated out of endless possibilities. One gun may fire large, single shot energy blasts that slow down and weaken all enemies in a large radius, where another gun will shoot bursts of many bullets that curve in every direction with a waving motion, another gun that fires several shots at once but can pierce through walls and home after enemies, and another that heals and enhances your allies.

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 a very precise unit of measurement that expands near-infinitely in either direction in this game. If you beat your last couple of levels easily it will slightly increase, if you keep getting beaten down without a fight it will decrease to help you out. 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 attacks, 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, or why you’re finally able to beat that one level that you were stuck on for so long.

These items combine to create an excellent formula for expandable gameplay – in the end you have a game that you can always come back to and find something different, and always be challenged regardless of your ability.
MINIMUM:
  • OS: Windows XP 
  • Processor: 2.5 Ghz (per-core) 
  • Memory: 2 GB RAM 
  • Graphics: 256 MB of GPU memory 
  • DirectX: Version 9.0c 
  • Storage: 25 MB available space
RECOMMENDED:
  • OS: Windows 7 
  • Processor: 3.0 Ghz (per-core) 
  • Memory: 3 GB RAM 
  • Graphics: 512 MB of GPU memory 
  • DirectX: Version 9.0c 
  • Storage: 30 MB available space

1. Go to http://store.steampowered.com/ and download the STEAM client.

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