Matter

Adventure· Atmospheric· Exploration· Relaxing

Released Dec 2018

Dive into a mystical world where gravity crumbles and landscapes transform. Matter is a dreamlike platformer, a contemplative and abstract journey. Explore a strange universe in 30 minutes of serene parkour, where matter and sound harmonize with your actions. A unique sensory experience awaits!

88% positive · 175 reviews

Done

All announced content has been released

High confidence

Done

All announced content has been released

High confidence

Where to buy

Steam Updated 11 Oct 2026 $4.99

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Evaluation

Matter launched on December 18, 2018 as a short (~30 minute) first-person parkour experience. After launch, the developer shipped two meaningful post-launch patches: the "Pulse Update" on August 8, 2019 (which overhauled several systems, improved level design, and added new features), and a localization update on September 28, 2019 that brought the game to 13 languages. Both posts also mentioned future quality-of-life items, but those were minor maintenance items rather than new content commitments, and the September 2019 post is the last update to the game itself. Following those patches, the developer's subsequent communications (February 2021 and May 2021) were entirely focused on promoting a separate solo project by one of Matter's developers — a different game called Square Paper City / Playhear. These posts explicitly frame Matter as a finished product and the developer as having moved on to a new project. There are no DLC listings, no roadmap, no announced future content, and no developer statements suggesting Matter will receive additional updates. The store description describes it as a complete, self-contained 30-minute experience. All post-launch improvements appear to have been shipped by September 28, 2019, after which development activity on Matter concluded.

Evidence

Matter 1.0 launched on December 18, 2018

news post · Dec 18, 2018 source content shipped

high

Follow-up post promoting the Square Paper City Kickstarter campaign. Again references Matter only as a past product, with no indication of ongoing Matter development.

news post · May 31, 2021 source development ending

medium

Media

Details

Developer

Uki Uki Lab

Publisher

Uki Uki Lab

Achievements

—

Platform

Windows, macOS

Controller

full support

Steam Deck

Not rated

Players

Single-player

Adventure Atmospheric Exploration Relaxing Stylized Music Mystery 3D Parkour Short First-Person Puzzle Platformer Platformer Surreal Colorful

About this game

Dive into a strange and mesmerizing world where gravity is unpredictable and the laws of physics are constantly defied.

Out of this world

Matter is a first-person parkour game that will plunge you into an unknown and mysterious dimension. You will need to use your agility and wits to overcome obstacles and discover the secrets of a strange reality.

The action takes place in a world that is both fascinating and strange. You will need to explore this universe in search of answers, but be careful not to get lost in its twists and turns.

Altered senses

Gravity is a central element of Matter. It is unpredictable and can change at any moment. You will need to adapt to these changes to avoid falling into the void...

Matter is an intense and fast-paced action-adventure game. You will need to overcome increasingly difficult obstacles to progress. The adventure is interspersed with short puzzles that will require you to use several of your senses. Don't worry, the journey remains very accessible, anyone can make it through.

Features

- A thrilling 30-minute adventure

- A platform game with a pleasant and serene atmosphere

- Disorienting and exotic landscapes

- A relaxing, dynamic, and disorienting soundtrack

- No violence

- No competition

- Just fun!
Important note: Please be advised that due to camera rotations and constantly altered perception, details may appear rapidly on screen and your sense of balance may be severely disrupted. For anyone who has ever experienced photosensitive epilepsy or motion sickness, it is not recommended to purchase or play this game as the risk of causing these episodes is real.