Open data
The full database of 571 survivors-like (bullet heaven) games on Steam is free to download as CSV or JSON, updated whenever the site is.
What is in the files?
One row per game: Steam app ID, name, links, release status and date, co-op type, max players, 2D or 3D, US price, review count, percent positive, seven-day average players, popularity score, Steam Deck status, developers and publishers. The methodology explains each field.
What is the licence?
The data is published under Creative Commons Attribution 4.0. You may use it for any purpose, including commercially, as long as you credit survivorslikegames.com with a link.