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Hello Sigilwrights!
We've just pushed a small balance and bugfix update that includes an adjustment to the Act 3 boss, as well as fixes to a few rare bugs. Here is a list of everything that changed:
The Stargorger Titan is less punishing for decks that play lots of Gravel, Seeks, or Star Fragments. We're still keeping an eye on our gameplay stats and feedback to see if more significant changes are needed!
Aladara's starting health increased slightly from 53 to 58
Fixed a softlock that could occur when playing Convergence on an empty board
Fixed a rare crash that could occur if the player's save data was somehow corrupted
Thanks again for all of your feedback and support!
Jeremy & Daniel Snake Tower Games
Attention Sigilwrights,
Thank you for supporting us through the Moonsigil Atlas launch! Over the weekend we have reached over 100 Steam reviews with a Very Positive rating, and we were featured on the New & Trending list for several days.
That said, we've also heard your feedback, and we're not done!
We've heard from several players that the Act 3 boss is too punishing for decks that rely on Gravel, Star Fragments, or other cards generated mid-combat. While it was intended that this boss is challenging for combo-oriented decks that breeze through ordinary combats, it's clear there's room to improve the balance.
We are already working on changes to include in an upcoming patch, so stay tuned!
A number of potential players who discovered Moonsigil Atlas after release have expressed interest in trying a demo, and we hear you! You can now play a demo version of Moonsigil Atlas and try a few runs before buying the full game. If you weren't sure, we'd love for you to give the demo a shot!
Please note that the demo will likely not receive any bugfix, balance or content updates that are added to the main game - it takes a lot of time to maintain and test two builds!
We've also heard lots of other feedback on the game in Steam discussions, reviews, and Discord.
If you have any ideas, feedback, or bug reports, the Moonsigil Atlas Discord server is the best place to share it! We are very active in the server and there are plenty of experienced players who are happy to discuss strategy or help you if you get stuck.
Thanks again for a successful launch!
Jeremy and Daniel Snake Tower Games
Attention Sigilwrights, Moonsigil Atlas is available now!
Don’t forget that there’s a 10% launch discount for anyone who buys the game shortly after launch. And even though the free demo has been retired, you can still transfer your demo progress to the new game.
And remember to leave a Steam review after you’ve had a chance to play! This helps unlock more visiblity on the Steam storefront and let us reach more players.
So what can you expect to encounter in Moonsigil Atlas?
There are no mana, energy, or action costs in Moonsigil Atlas, only shapes. Carefully place your sigils to make the most out of your limited grid, and also benefit from Adjacency and Overlap bonuses!
If you don’t like the shape of a card, you can reshape it with the game’s modular upgrade system. Remove tiles, add special Runes, or swap the shapes of two of your cards to craft the ultimate sigil!
Choose one of three characters with different cards and playstyles to vanquish the Astral Titans! Feldryn is an ancient wandering mage with no memory of his past. He is a master of card draw, with efficient ways to always find the right card for the right situation. Use Focus in combination with cards that hit multiple times to build up devastating attacks!
Aladara is the last of the secret order of the Shardkeepers, and a practitioner of a dark, forbidden magic. While all characters have access to powerful one-time-use Exhaust cards, Aladara can recover them to play multiple times. Make sure to completely fill the board to get the most out of powerful Fragile cards! Tark’thul was cursed by the goddess of fate after capturing the heart of a star in his lantern. Just like the star fire he wields, many of his sigils Burn, leaving behind ash. Expect high-risk, high-reward gameplay as you navigate a burned board and inflict status effects like Wound and Bleed to destroy your enemies!
A run of Moonsigil Atlas takes place over three increasingly difficult acts. At the end of each act, square off against a primordial Astral Titan. As a Sigilwright, you might learn how to reshape sigils, but the titans reshape the Moon itself. Watch out!
The stars shine bright, but the space between them is dark and ever-watchful.
As you play, unlock additional cards, artifacts, and starting decks to add even more variety to your runs. The more you play of a particular character, the more options you will have with each run.
Add even more challenge to your run with Eclipse Mode, selecting custom modifiers in the game’s pick-your-poison ascension system. There are a total of eight Eclipse levels, but only the most determined players can expect to triumph over all of them.
And somewhere beyond your sight, an ancient being watches and waits with great interest. Are you the one he has been waiting for?
We’ve poured a lot of blood, sweat, and tears into this game over the last few years, and we’re super excited to have finally released! Thank you all so much for your help and support, especially everyone who has played the demo.
That said, we’re not done! If you find a bug, have an idea for a card or artifact, or just want to discuss strategy with other players, join us in our Discord server.
Best of luck, Sigilwright. May you find smiles in the dark.
- Jeremy & Daniel (Snake Tower Games)
Attention, Sigilwrights!
With Moonsigil Atlas releasing on May 28th, we have included some additional details about the game launch so you know what to expect.
Time and Date: May 28 at 10am EDT
Pricing: 20 USD / 20 Euros (with additional regional pricing)
Launch Discount: 10%
Thank you so much to everyone who has played the demo and enabled gameplay telemetry! Your feedback & gameplay data have been incredibly valuable in helping us balance the game and track down rare bugs and crashes.
As we get ready for the full release, the demo will be retired, so be sure to finish up any runs you’d like to complete beforehand.
And don’t worry - if you have progress in the demo, you’ll be able to transfer it to the full game!
Launch is a critical moment for the game, and we need your help for Moonsigil to reach more players! Here's how you can help us stand out to the Steam algorithm:
Buy the game on day 1.
Leave a review as soon as possible, since review count has a huge impact on Steam visibility.
Tell a friend about the game! Moonsigil Atlas is a niche game, so traditional marketing is much less effective than word of mouth.
Thanks for your interest and support, and we'll see you on May 28th!
– Jeremy & Daniel Snake Tower Games
We're getting close to our May 28th release, but we're still hard at work further improving platform support and squeezing in a few more quality-of-life features!
After testing from Valve, Moonsigil is now Verified on Steam Deck. This means Steam Deck players will see input glyphs for in-game actions, be able to freely switch between gamepad and touchpad input, and the game has great performance on Steam Deck.
We also added a "Large Text Mode" option that improves text legibility on handheld devices - this option will default to on for Steam Deck. Large Font Mode, as well as several improvements to controller input, are available in the release version of Moonsigil, but have not been added yet to the demo.
Have progress in the demo? When you first boot up the full game, you will be able to transfer your unlocked characters and Mastery progress! Of course, there is also an option to start a new save if you prefer a fresh start.
In Moonsigil Atlas, you can place blueprint sigils to help plan out your turn.
After hearing your feedback in Discord about blueprint visibility, we've reworked the visuals to be more clear! There is also a new option to sort blueprinted cards to the left side of your hand, so it's easier to track which cards you have blueprinted. This (and several other) quality-of-life improvement will be in the release version of the game!
Have feedback on something else you'd like us to improve? Let us know in our Discord Server!
Daniel & Jeremy Snake Tower Games
After three years of development, countless builds, and endless R&D iterations to get every detail right, we finally have it: our release date.
We promised a June release, but you know what they say: “A wizard is never late, nor is he early, he arrives precisely when he means to.” So, we decided to release the game earlier!
To celebrate, the new demo update is live! Check out the improvements before the 1.0 release.
Learn more about what Moonsigil Atlas has in store in our official Release Date Trailer 🔴
We’re also taking this opportunity to release the new version of the demo Over the past few months, we have listened to your feedback to improve the game and provide the best possible experience.
For those who played the previous version of the demo, here is a look at what’s new:
Improvement of the UI and UX : We have increased the size of the player character in the bottom-left to improve combat readability.
Some players even thought they were playing as the moon.
Improved overall balance: Following your feedback on game balance, we’ve made several adjustments for this new demo.
Full controller support: Once again, we’ve listened to the community to ensure the game is accessible to as many players as possible.
Demo save carry-over: Start your journey in the demo. Characters unlocks & mastery levels will carry over when the full game launches.
Major improvements to visuals and overall game feel
Cards & Sigils: Greatly improved card & sigil visuals and readability across the board.
New Content: Expanded the demo with new cards, encounters, strategies,
and artifacts.
New Animations: Added new character animations and dynamic camera movements for a
more immersive experience.
And of course, this is just a glimpse, the full release will include even more content!
As a fun example of what’s new: the five “Moon Blades” artifacts, which change their behavior based on the real-life phase of the moon. Thank you to the community for sharing their best ideas
Moonsigil Atlas is a deckbuilding roguelike where physical space, rather than energy or action points, serves as the primary resource. Discover 250+ cards, and create tens of thousands of possible builds with our non-linear card upgrade system. The game unfolds in a universe built upon The Lattice, the hidden geometric framework underlying all of creation. On Moons where this structure lies exposed, Sigils allow mortals to channel this power at a great cost.
Follow us for all the latest news and exclusive sneak peeks:
Instagram: https://www.instagram.com/moonsigilatlas/
Discord: moonsigil.com/discord
We’ve put a lot of care into this demo, and we’re really excited to hear your thoughts. If you enjoy it, follow us and stay along for the journey.
See you on May 28th, 2026!
We’re also proud to be part of Turn-Based Thursday Fest, hosted by the Turn Based Lovers YouTube channel at 6 PM CET.
🎬 Check out the showcase here:
The game will also be featured in the Turn-Based Thursday Steam event, giving more players the chance to discover it during the event. It’s a great opportunity to introduce Moonsigil to fans of turn-based games and share everything we’ve been working on with a wider audience.
This is a huge moment for Moonsigil, and it reflects the many improvements and updates we’ve been working on over the past few months. As launch gets closer, we’re refreshing the game’s presentation with:
A Visual Update to the Steam Page
A Brand-New Trailer Showcasing Moonsigil’s Massively Improved Visuals
Our Official Social Media Channels:
Instagram: https://www.instagram.com/moonsigilatlas/
We’re proud to announce that we’re partnering with Twin Sails Interactive to publish Moonsigil! Their background in strategy and indie games, including digital board game titles such as Gloomhaven, makes Twin Sails an excellent fit for Moonsigill. As we head toward launch, and we’re excited to be working together to bring the game to more players. To learn more about the game and follow future updates, you can also visit the Twin Sails website. 👉 More details here: twin-sails.com
And if you haven’t already:
⭐Wishlist the game to stay updated on development and be notified when it launches!
Thank you for all your support. We can’t wait to share more with you very soon.
Hello Sigilwrights,
Moonsigil Atlas has been featured in the Tiny Roguelikes festival, running now through February 14th! If you haven't had a chance to check out our demo yet, now is a great time.
If you'd like to follow along with development, discuss strategy with other players, or chat with the devs, consider joining our Discord server: discord.gg/jrsaB4EStv
Thanks,
Daniel and Jeremy
Snake Tower Games
The October 2025 edition of Steam Next Fest just started, with over 2000 upcoming games participating with playable demos!
Check out Moonsigil Atlas's updated demo this week and play with some of the new features:
Artifacts that give permanent bonuses
Forbidden Cards that are rare, powerful, and can be acquired by any character
New Encounters including shape swapping and card duplication
Act 2 including many new enemies and a new boss fight
Localization to Simplified Chinese, Japanese, Korean, and Russian
Even more! Including dozens of visual improvements, quality of life updates, and bugfixes.
If you have previously played the demo, now is a great time to try it again and see the new content!
Want to discuss strategy with other players, suggest ideas, or talk to the devs? We have a Discord server with over 250 members! You can join here: Official Moonsigil Atlas Discord.
Thank you, and enjoy the festival! Daniel and Jeremy Snake Tower Games
We have just made a major update to the Moonsigil Atlas demo! Here are some of the new things you can encounter in-game:
Preliminary Localization to Simplified Chinese, Japanese, Korean, and Russian. There may still be issues as we work with our localization team, and we'd love to hear feedback from you!
Artifacts that give powerful, permanent bonuses
Forbidden Cards that are rare, powerful, and can be acquired by any character
New Encounters including shape swapping and card duplication
Act 2 including many new enemies and a new boss fight
Even more! Including dozens of visual improvements, quality of life updates, and bugfixes.
These updates are live right now!
You can support us by leaving a Steam review. Having more reviews improves our demo's visibility on Steam and lets us bring it to more players!
We will be participating in the October 2025 Steam Next Fest, so keep an eye out for Moonsigil Atlas among the many indie game demos featured! The festival kicks off on Monday, October 13.
If you watch any streamers who play deckbuilding demos, please let them know about us! We do not have a large marketing budget, so any help we can get through word of mouth is extremely helpful. We will be pushing another update at the start of the festival, so stay tuned for the next announcement.
We'll see you on October 13th for Next Fest! Until then... take care, frail one. May you find smiles in the dark. Jeremy and Daniel Snake Tower Games
The 2025 Tiny Teams festival, hosted by Yogscast Games, has just started, and will run until August 14th! With it comes a huge update to the Moonsigil Atlas demo, and some exclusive content you might see on Twitch streams in the next week.
Here's some of the new content in the demo you can play now:
Eclipse levels for additional difficulty modifiers once you've beaten the demo
New encounters, including Astral Card Packs and new forms of infusing
Improved visuals for the player character and encounters
Even more, including starting boons, character mastery, run history, Astral Dust, new cards, and a lot of small quality-of-life improvements
Want to see even more of the game, or chat with the developers? Our game will be featured on the Yogscast Twitch stream during the festival:
Date: Monday, August 11, during the 5-8pm BST time slot (12-3pm EDT)
Twitch: http://twitch.tv/yogscast
Youtube:
Yogscast will be streaming exclusive content from the full game, so keep an eye out for the third playable character Tark'thul and additional enemies, bosses, and encounters in Act 2. We will be in Twitch chat and happy to talk about the game!
Tiny Teams is a festival all about games made by teams smaller than 5 people, or even individual developers. In the past, it's featured games like Stardew Valley, Balatro, Phasmophobia, Vampire Survivors, and many others! Check out the Tiny Teams store page to play more demos from hidden indie gems, or catch discounts on established indie titles until August 14th!
Thanks for your support! Jeremy and Daniel Snake Tower Games
We are very excited to announce that Moonsigil Atlas will be featured in the Tiny Teams festival next week, hosted by Yogscast Games! There will also be a huge update to the public demo on August 7, the first day of the festival.
Here's what you can expect in the August 7th update:
Eclipse levels for additional difficulty modifiers once you've beaten the demo
New encounters, including Astral Card Packs and new forms of infusing
Improved visuals for the player character and encounters
Even more, including starting boons, character mastery, run history, Astral Dust, new cards, and a lot of small quality-of-life improvements
Additionally, keep an eye out for anyone streaming Moonsigil Atlas during Tiny Teams - you might catch some gameplay of the new playable character, Tark'thul, and additional content that won't be available in the demo!
If you're interested in participating in the closed playtest, where we make weekly updates to the game based on your feedback, please join our Discord server. Thanks so much to all the playtesters who have already contributed.
About
This page aggregates Steam news feeds, patch notes, and developer announcements for Moonsigil Atlas, sourced from official Steam community posts.
Major updates, balance changes, and seasonal events often correlate with player-count spikes — cross-reference announcements here with the live charts on the main Moonsigil Atlas statistics page.
Articles link back to Steam for full changelogs. SteamScope refreshes news entries as new posts are published to the game's Steam hub.