Endorlight

Endorlight launched in April 2016 and received a series of updates in the months leading up to and around its release. The developer was active from December 2015 through February 2016, shipping multiple feature updates: local co-op and new biomes (January 3, 2016), Steam leaderboards (January 7, 2016), pause/save systems and gamepad support (January 13, 2016), and finally a major content update adding bosses every 5 levels, 6 different bosses, and per-biome music (February 9, 2016). The game's only DLC — a soundtrack — released on March 3, 2016 and is already available. There are no unreleased DLC items on the store. The last recorded developer communication was the February 9, 2016 update, now over a decade ago. No future content, roadmap, or ongoing development has been announced. The game appears to have launched as a small indie project, received its intended content updates during early development, and has been complete since early 2016.