A new 16-player open-world game on Steam called Moon Sweepers has surpassed 50,000 concurrent players shortly after launch, making it one of October 2026’s most successful releases. Two-person indie studio DragDrop Games developed Moon Sweepers, which has received mostly positive reviews from Steam users at the time of writing.
Moon Sweepers could fit into Steam’s popular cleaning-game subgenre, led by games like PowerWash Simulator. However, DragDrop Games’ title adds a few interesting twists to the formula, making it a great fit for automation games too.
Moon Sweepers Is Steam’s Latest Clean-a-thon Star
- Genre: Open-World, Job Simulation, Automation, Base-Building
- Developer: DragDrop Games
- Release Date: October 23, 2026
Up to 16 players can join the Lunar Surface Department and take on the seemingly impossible mission of cleaning the entire moon. Each player starts with a toothbrush and must collect moon dust bit by bit to upgrade their gear. Like most automation games, Moon Sweepers also lets players buy machines to help with parts of the job, including autonomous robots that collect dust on their own. However, one feature that sets Moon Sweepers apart from the competition is its massive scale.
Players must quite literally clean the entire moon, a massive map that can take tens of hours to sweep. The mission can begin anywhere on the map, but staying close to a base lets players sell collected dust and earn money. Moon Sweepers is also a base-building game that lets players create new operation headquarters across the moon and set up automated dust-collection lines in different places. In co-op, players can spread out and run their own outposts or stay close to the team to speed up the project.
Find the odd one out before the timer hits zero.
Despite its success, Moon Sweepers‘ launch hasn’t been smooth. On October 24, roughly a day after the game’s official release, DragDrop Games issued a statement apologizing to fans for performance problems and balance issues. “We’ve seen your reports about crashes, performance issues, multiplayer bugs, lack of automation and progression balancing,” the announcement read. The team has promised to address Moon Sweepers‘ problems as soon as possible and has already released an update that fixes some of the most glaring issues.
Despite its minor launch problems, Moon Sweepers has joined the ranks of successful indie games in 2026. Attracting over 50,000 concurrent players is nothing to sneeze at for a game made by just two indie developers. Moon Sweepers‘ success also confirms a growing appetite for grinding-oriented simulation games. In recent months, several other organizing games and cleaning simulations like Moon Sweepers have also attracted mass audiences. And it remains to be seen what the next rising star in this subgenre will be.
