Rank 01Why this
Also Shoot 'Em Up and Side Scroller, like Promethium.
- $5.99 (Price checked Nov 7)
- 2015
The closest matches to Promethium: Shoot 1UP DX, Syder Arcade, Stellar Interface, Blazing Chrome, and Valfaris: Mecha Therion. Ranked by imho.run from Steam co-play data, shared tags and reviews.
Rank 01Why this
Also Shoot 'Em Up and Side Scroller, like Promethium.
Rank 02
Rank 03
Games in the same vein priced at least 40% below Promethium at current Steam store prices.
Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

Why this: Also Shoot 'Em Up and Side Scroller, like Promethium.



Other recommendable Steam games by Xiotex Studios Ltd, ranked by review count so the studio's hits land first.
The closest matches to Promethium: Shoot 1UP DX, Syder Arcade, Stellar Interface, Blazing Chrome, and Valfaris: Mecha Therion. Ranked by imho.run from Steam co-play data, shared tags and reviews.
If Promethium is your kind of game, the closest matches are Shoot 1UP DX, Syder Arcade and Stellar Interface — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
About Promethium: 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!
Too few reviews to call
A summary of what players say, not a promise you'll like it. Every signal is listed below.
People who play it also play: Shoot 1UP DX, Syder Arcade, Stellar Interface
Promethium is listed on Steam at 3.99 USD (current store price; Steam sales may reduce this temporarily).
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Promethium are Shoot 1UP DX, Syder Arcade, Stellar Interface.
Promethium was developed by Xiotex Studios Ltd and published by Thalamus Digital.