Screenshots
Watch trailer on Steam ↗Chain Letter
Jarikki Studio · Published by Jarikki Studio
Content notice: Chain Letter is a cute rhythm action game that gently explores emotional themes such as isolation, loss, and the fear of disconnection. While the visuals are colorful and charming, some story cutscenes contain abstract imagery, glitch effects, and emotionally intense moments that may be unsettling for sensitive players. The game does not contain blood, gore, or explicit content, but does address emotionally heavy topics through metaphor and symbolic storytelling.
Last updated 28 Sept 2026
《Chain Letter》 is a grid-based control roguelite defense game. Unlock and combine friend skills with unique commands to build your own setup and hold back the oncoming demons.
Action, Indie, Strategy, Casual · More free games
In Chain Letter, strategize your moves across a grid as you combine friend skills for powerful defenses against incoming demons. Each playthrough offers fresh challenges with unlockable commands.
About this game
《Chain Letter》 is a grid-based control roguelite defense game.
Combine friend skills to complete your own skill build, and hold back waves of demons within a fixed grid.
Clear 4 stages and unlock 31 friend skills to form your own party—then dive into this chaotic battle!
Key Features
Grid-based control: Thrilling combat where dodging and execution decide victory
Addictive hands-on feel: The more you master it, the more insanely satisfying it gets
Friend skill combos: Unlock 31 skills and craft your own build
Short and fast runs: Optimized for repeat play with a brisk pace
4 stages: Tougher enemies and new patterns as you progress
Sometimes powerful foes will appear—sometimes overwhelming bullet storms will rain down.
In the chaos, you must move quickly within the grid and use your skills to hold the line.
Each “friend skill” has its own unique command, and the more you get used to the controls, the more satisfying it feels.
Gather different types of skills (summons, rapid strikes, AoE, buffs) create your own combinations, and even if you fail, try again and grow stronger.
Defeat the demons that keep surging in, all the way to the end!
Story in the Game
You play as the protagonist “Mongsil,” caught in a mysterious incident, and must escape a world that repeats for unknown reasons.
In this hellish world, a magical letter is the key element.
The letter is used to unlock friends sealed by a curse, or to strengthen skills.
Can you unlock every friend and escape this world?
Deliver the letter, unlock and upgrade your friends, and push toward the exit from hell!
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10 (64-bit)
- Processor: Intel Core i3-6100 or equivalent
- Memory: 4 GB RAM
- Graphics: Intel UHD 620 or equivalent
- DirectX: Version 11
- Storage: 500 MB available space
- Sound Card: Integrated
Recommended
- OS: Windows 10 (64-bit)
- Processor: Intel Core i5-8400 or equivalent
- Memory: 8 GB RAM
- Graphics: NVIDIA GTX 1050 or better
- DirectX: Version 11
- Storage: 500 MB available space
- Sound Card: Integrated or dedicated
Supported Languages
Latest news
AnnouncementsOfficial
Demo Reopen Announcement
The Chain Letter demo is back online! Please try the updated demo and let me know what you think. I decided to reopen it a bit earlier than planned so I can gather more balance feedback, bug reports, and general impressions ahead of Steam Next Fest.I mainly collect feedback on Discord, but feel free to send it through any channel you prefer Steam Community, comments, DMs, anything is totally fine.Thank you so much for playing and supporting the game! Join our Discord for feedback & discussion https://discord.gg/CkENFgJbWHRead full article on Community Announcements (무구)AnnouncementsOfficial
Hello! Today I updated Chain Letter's Steam page.
First, I replaced the game description and capsule art. I also revised the description across several languages to make it more consistent, since some of them were a bit rough.As for the capsule art, I felt the previous image didn’t clearly convey the genre, so I updated it as well.The trailer and screenshots currently on the page were made for an older version of the game, and I’ll be updating those too as I polish the demo for Steam Next Fest.I stayed up all night revamping the Steam page, so I’m going to get some sleep now!!Thanks!Read full article on Community Announcements (무구)AnnouncementsOfficial
We’ve begun a major overhaul of Chain Letter.
We’ve begun a major overhaul of Chain Letter.We’ll be removing most elements that don’t align with the core gameplay, and we’re reworking the game from the ground up with a focus on a simpler, more streamlined experience.After this reorganization, we’ll be back at Steam Next Fest—aiming for an early 2026 release!Read full article on Community Announcements (무구)Patch NotesOfficial
Challenge Mode Added to the Chain Letter Demo 🎯
Hello! We’ve just added a brand-new Challenge Mode! 🎉In Challenge Mode, you can: ✨ Try out classmates and skills that were locked in the demo 🔥 Take on two types of bosses in Time Attack and Kill Count rankings!⚠ Watch out for the difficulty! It’s perfect for testing your skills :)Read full article on Community Announcements (무구)Patch NotesOfficial
📢 Chain Letter Demo v0.2 Update!
📢 Chain Letter Demo v0.2 Update! Hi there! I'm Moogugoo, the developer of Chain Letter.The demo has returned with big improvements in version 0.2!Here’s what’s new in this update:🎨 Character Art Renewal The main character and NPCs have received a complete visual update.🎬 Intro Overhaul You can now jump right into combat — no more waiting!🛒 Steam Store Page Update The store visuals have been refreshed to match the new art style.🎁 Stage Clear Reward System Added You now receive rewards each time you clear a map node!🐛 Bug Fixes & Optimizations Improvements to resolution, input, rhythm bar visibility, and various minor bugs.Come play the cleaner, sharper, more fun Chain Letter demo now! And please feel free to share your thoughts or feedback on Twitter or Discord!Thanks for playing 💌🔗 Discord: https://discord.gg/AGbJXHnQPJ 🔗 Twitter: https://x.com/ChainLetter_devRead full article on Community Announcements (무구)
