Announcement
New Demo Soon
i had a baby so things are taking some time to cook new demo for the next update should be out this month or next. it will make more sense when you play it yourself and learn how to use mechanics like wallkick combos &…
Steam
Spellbook Demonslayers
Also known as Spellbook Demonslayers, sd, spellbook demonslayers
Slay endless hordes of demons to protect the Cosmic Library! Steal their abilities, find powerful equipment, and unlock the secrets of each spellbook to become unstoppable! Will you be able to destroy the demonic legion?
Last update
25 Jun 2026
Players now
3
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- September 2024
- The Apocalypse is coming. https://store.steampowered.com/app/2104590/Spellbook_Demonslayers_Demo/ This is only the beginning.Store
- March 2024
- Hello~ Xendra is working on a total rehaul that will come with the next major update. The workload is huge for a solo dev, but this will ensure the upcoming content aligns with Xendra's vision. Spoiler Please be patient…Store
- February 2024
- Info About Next UpdateHaven't been available much to communicate becuase of family & housing stuff i've had to work on first just to clear up some potential confusion: The Hades style prototype is for a sequel coming out after this game's 1.…
- November 2023
- https://store.steampowered.com/bundle/36456/Slayer_Sunrise/ Ocelot Sunrise is a comic-style survivors-like game set on alien planets in distant galaxies. As always, owners of Spellbook Demonslayers will get an extra 10%…Store
- COMING SOON: This update will contain new content, but also a lot of significant changes to existing things because I felt like the feel of the game was way off from where it should be. New Character: Skye The Cosmic Li…Patch notes
- Bullet Heaven Fest - Celebrate the New Steam TagHiya~ It is Liya again. Erabit together with Ravenage is organizing a new Steam Fest!!! Visit the Bullet Heaven event page to browse more games like Spellbook Demonslayers. I also got you bundles with freshly released g…
- October 2023
- 🧟🧟🧟FatalZone from the Popular Upcoming will be an extra 10% off for the owners of the Spellbook Demonslayers 🔥🔥🔥 FatalZone is a zombie survivor game with RPG progression: 🏆Survive & beat challenges to unlock skil…Store
- September 2023
- SHMUP Discount & Mid-Autumn FestivalDear players, I wish you all a happy Mid-Autumn Festival! I hope you all can have a nice family gathering and taste some new-flavored moon cakes! Meanwhile, the SHMUP event has many games, like Spellbook Demonslayers, o…
- August 2023
- Psst. SBDS is in the Dreamhack Beyond Summer Showcase. Check the header to find many mint games. TRADING CARDS are now available!🥳 There are a total of 10 cards you need to unlock a badge, but each card will drop for 2…Store
- Demons Unleashed Discount & Trading Cards previewSpellbook Demonslayers is participating in Demons Unleashed event You will get extra 20% off from the game. There are also many other demonic games at sale and in preview. After sale Trading Cards will be added to add m…
- July 2023
- NEW Features & BIG Balance Changes! [July 17]NEW Features & BIG Balance Changes! New Permanent Upgrades / Enemy Spawn Change The Expel mechanic changes how you interact with demon spawns. Instead of taking a hit because a demon spawned too close to you, now you wi…
Gallery
In-game media
Achievements
Community progression
Top picks from 100 Steam achievements, sorted by player unlock rates.
- The SpikeSurvive for 4 minutes.92.8%
- The SlaughterHidden84.3%
- RampageObtain 5 buffs at once.83.6%
- AltercationReach level 20 with any Spellbook.83.4%
- The StarEarn 13 or more Astral Flowers in a single run.82.9%
- The SniperPlay 3 runs.78.2%