Screenshots
Watch trailer on Steam ↗SEMO
Hard Coders · Published by Hard Coders · Official site ↗
Last updated 28 Sept 2026
SEMO is a co-op physical platformer in which you move and jump your triangle to collide with the circle to get it to the target point.
Action, Indie, Casual · More free games
Navigate through tricky levels as a triangle in SEMO, an indie action game where teamwork and precise jumps are key. Collaborate with friends to solve puzzles by colliding your shape with circles to progress.
About this game
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About the Game
- Jump into the SEMO's Great Adventure right now!
One day, in the world of figures, a square tries to create order by locking up freewheeling circles. SEMO, Circle's friend, joins forces to rescue them.
- Various stages
There are many stages that will make you suffer, and they will be added in the future!
- Single and multiplayer modes
You can enjoy all the content by yourself, even if you don't have friends, as well as remote play with friends. You can also enjoy it with two people on one device without an Internet connection!
- Competitive mode
Other than Co-op, you can also compete with your friends in a PVP!
- Map Editor
Testing is currently in place, and we are developing a space to unleash your imagination!
- The highest record
It is graded based on how efficiently you cleared quickly. Win your fight against yourself and break the shortest record!
System Requirements
Will my PC run this? →Minimum
- OS *: Windows 7
- Processor: Dual core from Intel or AMD at 2.8 GHz
- Memory: 4 GB RAM
- Graphics: Nvidia 450 GTS / Radeon HD 5750
- DirectX: Version 11
- Storage: 1 GB available space
- Sound Card: Realtek
Supported Languages
Latest news
Patch NotesOfficial
SEMO v1.2.17 Update
Hello everyone! Ahead of Gamescom, we’ve released a relatively major update!1. Updated Tile GraphicsThe visuals of various tiles throughout the game have been updated to better match the theme of each map!2. Switched to a Linear Stage StructureBased on your feedback, we’ve removed the previous roguelite map structure and changed the game to a more linear stage-based format!3. New Effects for Certain ActionsActions like jumping and dashing now come with fun, comic-style effects to make things even more visually exciting.4. You Can Now Shove Other PlayersTry dashing into another player and see what happens. :)5. Added AnomaliesWe’ve added a small taste of a new challenge called Anomalies. Give them a try and see if you can overcome them!We’ve also fixed various minor bugs.If you have any feedback, feel free to leave it here in the Steam Community or on our Discord.Thank you!Read full article on Community Announcements (Baranson)Community & EventsOfficial
Watch the community play!
Watch the community play! (v.1.2.16)Read full article on Community Announcements (Baranson)Patch NotesOfficial
SEMO v1.2.16 Update
Hello, everyone who’s been itching to teach that unruly circle a lesson! We’ve got some great news for you!1. 8-Directional Dash AddedPlayers can now dash in eight directions instead of just left and right. Send the ball flying exactly where you want it to go!2. Lifting and Trapping AddedYou can now control the ball with greater precision using lifts and traps! Master some godlike ball control and become the next Messi!3. Circle Perks AddedIn addition to perks that apply to the triangle, we’ve added perks for the circle as well! You can now create even more diverse perk combinations. :)We've also fixed several minor bugs.If you have any feedback, feel free to leave it here on the community page or on our Discord.Thank you!Read full article on Community Announcements (Baranson)Patch NotesOfficial
SEMO v1.2.15 Update
Hello everyone! Here's this month's update!1. Improved Random Map GenerationWe've refined the roguelike-style random map generation introduced in the previous update, making it much more beginner-friendly!2. Coin Tiles AddedCoin Tiles have been added to every stage! Collect them with your Circle to earn additional currency.3. Perk System AddedPerk Shops now appear throughout each map. Use your currency to purchase perks that will help you during gameplay!We've also fixed several minor bugs.If you have any feedback, feel free to leave it here on the community page or on our Discord.Thank you!Read full article on Community Announcements (Baranson)Patch NotesOfficial
SEMO v1.2.14 Update
Hello everyone! We are back with another packed update for this month. Here is what’s new:1. Roguelike Random MapFrom now on, when you clear a stage and choose the next one, you will enter a randomly generated map!2. Face Customization for SEMOWe have added tons of super cute eyes and mouths to customize your SEMO character! :)3. In-Game Currency SystemThe tougher the stage you clear, the more rewards you get. What do you think you can buy with this currency in the future?4. New Stages 14 & 15Two new high-difficulty stages featuring brand-new tiles are now live. Give them a shot!5. Local Multi-Gamepad SupportPreviously, only one gamepad could be used at a time. Now, you can connect two gamepads to a single PC and enjoy local co-op with a friend!We've also fixed several minor bugs.If you have any feedback, feel free to leave it here on the community page or on our Discord.Thank you!Read full article on Community Announcements (Baranson)
