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Watch trailer on Steam ↗Summoner's Gambit
billion studio · Published by billion studio
Mixed — 64% positive (109 reviews) · 20 achievements
Last updated 7 Oct 2026
Summoner's Gambit is an innovative duel game that blends strategy roguelike with auto-battler positioning. As a powerful summoner, you'll forge a dominant formation and clash against other players on the ever-shifting battlefield, where wit and luck collide.
£7.15
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
Price history
Indie, RPG, Strategy · 2026 · More £5 - £15 games
Summoner's Gambit challenges you to blend strategy and luck as a powerful summoner, positioning your forces against others in ever-changing combat.
About this game
As the chosen Apostle of the Old God, you will step into a mysterious realm brimming with chaotic energy. Here, each card seals the soul of an ancient creature, and every summon is the ultimate test of strategy and luck...

Acquire new cards and creatures through adventure, building a powerful deck to deploy your forces in exhilarating battles against foes. Positioning strategy directly affects unit attack priority and skill range. Leverage numerical bonuses and tactical synergies between creatures to forge a unique combat style and experience card duels rich in strategic depth.
Summoning in this world requires adherence to fundamental energy laws—proceed with utmost caution. Prevent energy overflow to avoid backlash; skillfully leveraging this constraint can become a weapon against your enemies. Remember, greater risks yield greater rewards. Of course, certain unique tricks will let you navigate risk and reward with mastery. Can you evade the Old God's gaze?
Each race offers multiple build paths. Moreover, nearly all acquired creature cards can be fused. The resulting creature inherits traits from both components, becoming a more formidable entity. Continuously fuse and upgrade your creatures to reach the ultimate goal.
Defeated the final boss? Is it truly over? Rich online battle modes await—experience the thrill of asynchronous duels!
System Requirements
Will my PC run this? →Minimum
- OS: Windows 10
- Processor: Intel Core i3
- Memory: 4 GB RAM
- Graphics: GTX 1060
- DirectX: Version 11
- Network: Broadband Internet connection
- Storage: 1 GB available space
Recommended
- OS: Windows 10
- Processor: Intel Core i5
- Memory: 8 GB RAM
- Graphics: GTX 1060
- DirectX: Version 11
- Network: Broadband Internet connection
- Storage: 2 GB available space
Supported Languages
Latest news
Patch NotesOfficial
Autumn Sale Update — Now Live!
Autumn Sale Update — Now Live!Steam Autumn Sale 2026 is here, and Summoner's Gambit hits a new all-time low!15% off — now only $6.79.Sale ends October 8 at 10:00 AM PT. Don’t miss out!Update Notes:Bug FixesImproved the save-writing process to reduce the risk of save corruption caused by write failures.Fixed loading and transition issues that could occur when skipping the opening dialogue quickly.Added the regular events that were missing from advanced maps.Adjusted the spawn distribution of the "Debt" event.Workshop & ShopAdjusted the service price escalation rate: 10% on Normal difficulty, and 12%, 13%, 15%, 17%, 18%, 20%, 22%, 23%, and 25% for Advanced 1–9 respectively.Fusion NotesAdded descriptions for fusion points, possible levels, skill-slot chances, and mutation chances.Thanks for playing!Read full article on Community Announcements (Niaraeth)Patch NotesOfficial
Summoner's Gambit's First-after-release Patch Notice
Hi everyone! Here’s Billion Studio, thank you for playing Summoner’s Gambit!Being a very small team of two, we have worked on this project for about 2 years, we know it still contains a lot of problems, but we are trying our best to fix it.Since our release on last Thursday, we have acquired a lot feedbacks and suggestions from players all around the world, including balancing issues, bugs and crashes.Below’s what we tried to fix over the weekend:Balancing issues:Increased Gold gained after each battleTweaked several enemy Card effects, lowering difficultyChanged the probability of “Mysterious Runestone”, getting a Rune is now at 75%Lowered the overall Opponent strength in chapter II and IIILowered the cost increment of Card fusion and deletion (from 30% to 20% increase)The Sacrifice option “Hand” now only grants one negative cardBugfixes:Fixed resolution issues for non-16:9 screens and full-screen display issuesDeleted Vibration options for Controllers (no more Bzzz)Fixed some Achievements being unobtainableFixed some empty-drop issues after defeating opponentsFixed some Runes having no effectFixed some Card effects not having effectFixed Issues with summoning Elixirs or likes that would cause one card not being displayed on fieldFixed issues with Video-encoding that would cause freeze after beating the Boss at chapter IIIFixed several CrashesAbout Updating Steam-cloud save feature:We have implanted Cloud-save feature, but because there might be some of you who has already two separate saves, we would like to announce a standalone update, just for the cloud save feature. We'll be back with a new notice, explaining how you can manually back-up your precious save and choose the one you would like to keep. Please stay tuned!Know Bugs and other pending stuff:Other balancing stuffAn option to skip the Video at the start of each RunMore readable item and card descriptions (long-term)Other display issues and BugsOther combat-related issues and BugsThank you for all the in...Read full article on Community Announcements (Niaraeth)AnnouncementsOfficial
Summoner's Gambit Is Now Available! Enter the World of the Old Gods!
Dear players,The wait is finally over!The Lovecraftian strategy Roguelike deck-building game Summoner's Gambit is now available on Steam! Thank you for your patience and support. It’s time to enter the world of the Old Gods and begin your journey.About Summoner's GambitSummoner's Gambit combines deck-building, auto-battler strategy, and a blackjack-inspired energy management system. You take on the role of a collector tasked with reclaiming lost souls... Empowered by its forbidden gifts, you will hunt down the souls that were borrowed but never returned. Your only weapon is the deck of cards in your hands.Blackjack Strategy, Every Decision Counts:With 21 energy as your limit in each battle, drawing one more card could completely change the outcome—or lead to total defeat. Every card is a gamble. Will you play it safe, or risk everything for a chance at victory?Endless Builds, Limitless Strategies:With 500+ skills, 150+ runes, dozens of potions, and countless combinations, every run offers new possibilities. Create unique builds and discover your own path to victory.Face the Unknowable:Explore dozens of branching events filled with Lovecraftian horror and mystery. The whispers of the Dagon Cult, the eerie glow of the Colour Out of Space, and the forbidden truths hidden within the Thurston Manuscript... Madness lurks everywhere. The gaze of the Old Gods is never far away.A Trial Between Life and Death:Defeat is not the end. Face the Judgment of Life, sacrifice what you have to return stronger—or accept your final fate.Launch Content4 unique playable classes – each with their own skills and exclusive card pools, offering distinct playstyles and strategic possibilities.200+ character cards – every card is a summonable combat unit, allowing you to explore countless deck-building possibilities as your collection grows.500+ skills – combine them to create powerful strategies and unique builds.150+ runes – unlock powerful bonuses and create unique synergies with your chosen...Read full article on Community Announcements (dingdingding)AnnouncementsOfficial
Summoner's Gambit Launches on August 6th! See You in the Ancient Gods!
Hello everyone!Thank you for your patience and support! After multiple rounds of playtesting, demo releases, and countless refinements based on player feedback from game exhibitions around the world, we are excited to announce that Summoner's Gambit will officially launch on August 6th!We would like to extend our heartfelt thanks to every player and friend who participated in testing, shared feedback, and helped us improve the game. Your support and suggestions have played an essential role in shaping Summoner's Gambit into what it is today. ❤️✨Key features of the full release include:4 unique playable classes – each with their own skills and exclusive card pools, offering completely different strategic experiences.200+ character cards – every card is a summonable combat unit, with endless deck-building possibilities waiting to be discovered as you expand your collection.100+ runes – unlock powerful bonuses and create unique synergies with your chosen class.35+ potions – offering a variety of instant effects; knowing when to use them can turn the tide of battle.Dozens of random events – every choice matters. Your decisions directly affect your resources, risks, and rewards throughout each run.9 ascension challenges – each level raises the difficulty, pushing your deck-building skills to their limits.Card fusion system – create and customize your cards with unique abilities, attributes, and visual designs.Asynchronous PvP – challenge players around the world with 20+ preset decks, customizable character appearances, and strategic battles available anytime.To all our players:The launch of Summoner's Gambit is not the end—it is only the beginning of our journey together. If you enjoy the game, don’t forget to add Summoner's Gambit to your wishlist and stay tuned for the latest updates!On August 6th, we’ll be waiting for you in the realm of the ancient gods. See you there!Read full article on Community Announcements (dingdingding)Community & EventsOfficial
Thank you for an amazing Steam Next Fest!
Dear Summoners,Thank you all for playing the Summoner’s Gambit demo during Steam Next Fest! We are incredibly grateful for all the feedback we received, and your support, passion, and insights have truly inspired us.Although Steam Next Fest has officially ended, the Summoner’s Gambit journey is just getting started! The demo will remain available, and we will continue to update it based on your suggestions. We warmly welcome everyone to keep sharing feedback, and we are listening closely and committed to making the game even better with your help.If you haven’t already, please add Summoner’s Gambit to your Steam wishlist. It’s the best way to stay updated on our progress and a tremendous support to our development team.Thank you again for being part of this journey. We look forward to seeing you again in the official release!Sincerely,The Summoner’s Gambit TeamRead full article on Community Announcements (dingdingding)









