Monster Slayers

Card Game· RPG· Roguelike Deckbuilder· Card Battler

Released Mar 2017

Monster Slayers is a rogue-like deck-building RPG adventure. Create a hero and choose your path through the perilous Northern Valley as you battle monsters to become a legendary Monster Slayer!

79% positive · 1,271 reviews

Not yet

Released, but still in active development

High confidence

Active Development

Not yet

Released, but still in active development

High confidence

Active Development

Where to buy

Steam Updated 12 Oct 2026 $8.99

Can't confirm — worth a look

We couldn't confirm these stores carry this game.

Green Man Gaming Steam key Search IndieGala Steam key Search

Prices in USD, as listed by each store.

Buying through an affiliate store helps support the site

Evaluation

Monster Slayers launched in March 2017 and received consistent updates through 2017, including six new classes in April 2017 and the Fire & Steel expansion in May 2017. After a period under a publisher arrangement, the developer (Nerdook) reclaimed full control of the game in December 2025 and immediately resumed active development. Since regaining control, the developer has shipped a string of updates: v1.5.2 on December 3, 2025 (engine port to GameMaker Studio 2, new hand-drawn sprites), v1.5.3 on December 6, 2025 (bug fixes and card rebalancing), and most recently v1.5.5 on September 18, 2026 — a substantial free update adding full localization in 7 languages, a reworked Companion system, a reworked Altar system with new Eldritch cards, new card types (Afflictions and Fatigue cards), and new and updated artwork including redrawn and reanimated monsters. The developer's September 18, 2026 post is warm and engaged, describing the update as "HUGE" and encouraging players to revisit the game. No statement has been made that development is concluded. The developer remains clearly active — both on Monster Slayers and on their new title, Cyberpunk Inquisitor. Both DLC items are released and all prior content has shipped, but the pattern of ongoing free updates indicates the developer continues to support and add to the game.

Evidence

Major free update v1.5.5 released, adding localization for 7 languages, reworked Companion and Altar systems, new Affliction/Fatigue card types, and new/updated artwork for monsters and cards.

news post · Sep 18, 2026 source content shipped

high

Developer reclaimed full control of the game from the publisher and shipped v1.5.2, porting to GameMaker Studio 2 and adding new hand-drawn sprites. Stated: 'look forward to more frequent updates for Nerdook games.'

news post · Dec 3, 2025 source development ongoing

high

Content

2 of 2 released · no outstanding content

Released

Monster Slayers - Fire & Steel Expansion

May 2017

Released

Monster Slayers - Advanced Classes Unlocker

Apr 2017

Media

Details

Developer

Nerdook Productions

Publisher

Nerdook Productions

Achievements

Platform

Windows

Controller

—

Steam Deck

Playable

Players

Single-player

Roguelike Deckbuilder Card Battler Card Game RPG Roguelite Deckbuilding Turn-Based Strategy Turn-Based Combat Loot 2D Roguelike Turn-Based Strategy Action Dungeon Crawler

About this game

Developed by Nerdook (Reverse Crawl, Vertical Drop Heroes), Monster Slayers is a complete reimagining of the free web-based hit of the same name, which has been played over 4 million times on gaming portal, Kongregate.

A rogue-like deck-building RPG adventure (and one of the very few released BEFORE Slay the Spire), Monster Slayers uses an innovative card-based battle system and lets you customize a deck to suit your play style. Create a new hero to join the Monster Slayers Guild and choose your path through the perilous Northern Valley as you follow your quest to defeat the legendary Harbinger and become a true Monster Slayer.

Battle undead goblins, lion outlaws, mighty dragons and other monstrous foes using a unique card-based combat system
Strategically shape your deck as you acquire new cards from merchants, treasure chests, and allies
Collect fame from each run to unlock new abilities that can be used by future heroes
Every playthrough is different: levels, enemy encounters and loot are randomly generated
Choose from six different classes: Rogue, Ranger, Knight, Barbarian, Cleric, Wizard
Recruit companions to join you on your quest and make use of their special abilities
Equip your hero with stat-boosting loot to improve the chances of victory
Fight for your place at the top of the Monster Slayers leaderboards
Fully translated into 8 different languages!
Inspired by the much-loved deck-building RPG, Dream Quest, created by Peter Whalen (Hearthstone)

Last evaluated Sep 18, 2026