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Need to find a cheap UNDEMON Steam key? Compare prices from 2 stores to locate the cheapest option among 2 offers featured on GG.deals. According to our finds, the lowest price for UNDEMON PC can be obtained on GAMIVO at A$2.57 (88% off).
About UNDEMON
If you're considering buying UNDEMON CD key at the best price, you might want to explore some facts about the game. It was developed by WEST SUN and published by WEST SUN. The PC release date was November 20, 2021. The genre of the game can be defined as action and indie. Right now, 64 GG.deals users have wishlisted the game.
Having reviewed the game’s details, you may want to pick up a discounted UNDEMON Steam key on GG.deals.
UNDEMON: A Haunting 2D Platformer Adventure
Embark on a supernatural adventure as Luna, a ghost with amnesia, in UNDEMON! This challenging 2D platformer blends classic 90s gameplay with unique ghost mechanics. Explore mysterious stages, uncover Luna's past, and discover who turned her into a spectral being.
Synopsis
A powerful lightning strike awakens Luna, a ghost with no memories, within an old tomb. Drawn to a nearby house, Luna begins a perilous quest to unravel the mystery of her ghostly existence. What secrets lie hidden in her past, and who is responsible for her transformation?
Game Modes
UNDEMON offers multiple game modes to suit your skill level:
- Normal Mode: A balanced experience with moderate difficulty, perfect for new players. Upgrade Luna's abilities to conquer challenges.
- Original Mode: A hardcore mode reminiscent of classic games, featuring slippery controls and limited visibility. Test your platforming skills in this demanding mode.
- ??? Mode: Unlocked after completion, this mysterious mode presents a unique challenge: collect souls to gain 1UPs!
Ghostly Hide System
As a ghost, Luna possesses the ability to "hide," partially phasing out of reality. Use this mechanic to stun enemies, bypass obstacles, and navigate the world. Be warned, some villagers have developed a resistance to your spectral presence. However, hiding is ineffective againist animals. Stun human enemies by bumping into them while hiding.
Spooky Sight System
Luna's ghostly vision is initially limited, only allowing her to see nearby humans in the dark. Improve her "Sight" ability to expand her visual range. Animals, however, are always visible, regardless of range.
Upgrade Abilities
Collect souls to enhance Luna's abilities and overcome increasingly difficult challenges. The upgrade options vary depending on the game mode:
Normal Mode Abilities:
- Attack: Increase your attack power, allowing you to defend yourself against enemies.
- Sight: Expand your visual range to detect more humans in the darkness.
- Flying Time: Extend the duration of your flight ability.
- Recover Flying: Reduce the cooldown time for your flight ability.
- Fire Resistance: Reduce fire damage.
- High Jump: Increase your jump height to reach new areas.
Original Mode Abilities:
- Attack: Gradually increases attack, can fire long-range energy.
- Sight: Expand your visual range to detect more humans in the darkness.
- Friction: Improves movement and control of the slippery ghost.
- Hiding Time: Extends the duration of your hiding ability.
- Recover Hiding: Reduce the cooldown time for your hiding ability.
- Flight/Flying Time: Flight becomes possible, and flying time increases.
- Recover Flying: Reduce the cooldown time for your flight ability.
Stage Progression
Navigate each stage by finding the correct keys. Look at the hint signs! Fake yellow keys exist, so examine them carefully. Red keys do not have fakes, so grab them when you see them!
Related Links
Game Info
System Requirements
Minimum System Requirements:
-
OS: Windows 7
-
Processor: Intel Core 2 Duo U7600
-
Memory: 2 GB RAM
-
Graphics: NVIDIA GeForce GTX 1060 3GB or AMD Radeon HD 6250
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DirectX: Version 9.0
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Storage: 1 GB available space
- Sound Card: NVIDIA High Definition Audio
Recommended System Requirements:
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OS: Windows 10
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Processor: Intel Core 2 Quad Q9000
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Memory: 8 GB RAM
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Graphics: NVIDIA GeForce GTX 1060 3GB or AMD Radeon HD 6250
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DirectX: Version 11
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Storage: 1 GB available space
- Sound Card: NVIDIA High Definition Audio
Age Ratings
Age Ratings for this game are unavailable.
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Price History of UNDEMON
While the 88% discount may look attractive, it's always nice to make sure that you're receiving the best possible value. To help our users shop smartly, GG.deals tracks UNDEMON price history. All price fluctuations can be seen in the graph on this page. Additionally, GG.deals provides statistics on the cheapest price point in a game's history, a metric which we call the "historical low". The best UNDEMON PC price of all time was documented on December 24, 2025 on GAMIVO, allowing gamers to get the game for just A$2.05.
Observing price trends can give insight into what kind of UNDEMON price drop one can anticipate in the future. This is where price alerts on GG.deals are extremely practical and you can configure one by using the "Create Alert" button.
Historical low prices
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