Promethium

58KS
Released Aug 18, 2017by Xiotex Studios LtdMixed(67% of 24 Steam reviews)

Inspired by classic Commodore 64 and arcade games, Promethium is a hard-as-nails retro inspired side-scrolling shoot-em-up that takes place over numerous levels that get harder and harder. If you’re after a nice calm casual game this isn’t it!

Offers

What are keyshops?

Official stores

Official stores with direct support.

Steam
SteamOfficial
updated
Lowest price
£6.69
Shop now ↗
Green Man Gaming
Green Man GamingOfficial
updated

About Promethium

The Promethium armada is headed to Earth, leaving a toxic trail of destruction in its wake. Commander Braybrook, it is your mission to take up the experimental deep space fighter and stop the armada before it reaches us - YOU ARE OUR ONLY HOPE!

INSPIRED BY C64 AND ARCADE CLASSICS


Inspired by classic Commodore 64 and arcade games, Promethium is a hard-as-nails retro inspired side-scrolling shoot-em-up that takes place over numerous levels that get harder and harder. If you’re after a nice calm casual game, this isn’t it!

Gameplay


Fly left and right over the Promethium armada ships. They have shield generators protecting them. Hover over a shield generator to hack and disable it. Once all the shield generators are disabled a self destruct code will be sent to the armada ship causing it to explode. Be careful though, the armada ships are guarded by a fleet of fighters!

Power-ups


Destroy enemy ships and collect the power pods they drop. These power pods are like cash, they allow you to buy power-ups.



The available power-ups are displayed at the bottom of the screen. The power-up you can buy is highlighted in orange. Every time you collect a power pod the next power-up becomes available to you. Some power-ups are single use, some are multiple and some are timed. Experiment to find your perfect combination.

Controls


Promethium can be played on a joypad or if you're really brave and have the reflexes of a Ninja Cat then you can use a keyboard. I'd really recommend a Joypad though, this game is tough enough as it is.

Use any analog stick or the d-pad to control the experimental fighter, or in keyboard mode use WSAD or cursor keys to fly.

You can fire using any of the triggers, bumpers or the 'B' button on Xbox 360 or Xbox One controllers and the 'O' button on the Dualshock controller. If you are in keyboard mode you can press the space bar to fire.

You can buy the current power-up by pressing the 'A' button on Xbox 360 or Xbox One controllers and the 'X' button on the Dualshock controller. If you are playing using a keyboard then any key other than WSAD, Space or the cursor keys will allow you to buy the current power-up - I'd suggest the return key is a handy one.

Game details

Promethium price history

Lowest tracked price: £3.34 (Jul 14, 2026) · current best: £6.69 across 2 stores.

Promethium reviews

67% positive reviews all-time.

Promethium — frequently asked questions

Where can I buy Promethium at the cheapest price?

Right now the cheapest offer for Promethium is £6.69 at Steam. KingsPrice compares 2 offers from 2 stores — official stores and keyshops — and refreshes prices throughout the day.

What is the lowest price Promethium has ever been?

The lowest price KingsPrice has tracked for Promethium is £3.34 (recorded on Jul 14, 2026). This covers the stores and period we monitor — set a price alert to catch the next drop to that level.

How can I get Promethium at a discount?

Create a free price alert on this page and KingsPrice will email you when Promethium drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.

System requirements

Minimum

Minimum:
  • OS *: Windows 7/8/10 (64-bit OS required)
  • Processor: Intel Core i5-2300 2.8 GHz, or equivalent.
  • Memory: 8 GB RAM
  • Graphics: NVIDIA GTX 550 Ti 2GB, or equivalent.
  • DirectX: Version 10
  • Storage: 2 GB available space

Recommended

Recommended:
  • OS *: Windows 7/8/10 (64-bit OS required)
  • Processor: Intel Core i7 4790 3.6 GHz, or equivalent.
  • Memory: 16 GB RAM
  • Graphics: NVIDIA 970 GTX , or equivalent.
  • DirectX: Version 11
  • Storage: 2 GB available space

Similar at tracked lows

Games like Promethium (8)