10 Games Like Slay the Spire (Browser Deckbuilders and Beyond)

Slay the Spire opened a door in 2017 that the indie scene has been walking through ever since. If you’ve climbed the Spire enough times to start drafting cards in your sleep, the next question is what to play next. These ten games like Slay the Spire keep the deckbuilder-roguelike loop intact while changing enough to feel new — and where they run free in a browser, we’ve flagged it.

1. Monster Train

Made by Shiny Shoe in 2020 and widely treated as the strongest Slay the Spire successor. You defend a three-floor train carrying Hell’s last pyre against waves of angels, drafting cards from two clan combinations across a thirty-clan matrix. The vertical battlefield and clan-pairing system give it a strategic shape Slay the Spire doesn’t have. Paid on Steam — no official browser version — but the demo on Shiny Shoe’s site runs in a browser for a taste.

2. Inscryption

Daniel Mullins’ 2021 horror-deckbuilder. The first act looks like a creepy woodland deckbuilder where you sacrifice creatures for mana, but the game keeps breaking its own rules across three acts in ways we won’t spoil. Paid on Steam and consoles, no browser version, but worth the price of admission for anyone who liked Slay the Spire’s runs and wants something that pushes the format somewhere stranger.

3. Roguebook

From Richard Garfield (the designer of Magic: The Gathering) and Abrakam. Two heroes per run, a shared deck, and a hex-map overworld you reveal with ink. The art direction is gorgeous — illustrated like a storybook — and the deck-thinning mechanics differ enough from Slay the Spire that you have to relearn habits. Paid on Steam.

4. Across the Obelisk

A four-character co-op deckbuilder where you control a party in turn-based card battles. The big differentiator is online co-op — three friends can each pilot a hero in the same run. Branching choices and a karma system reshape later runs. Paid on Steam.

5. Wildfrost

Chucklefish’s 2023 deckbuilder where you arrange units on a small grid and use “counter” timers to trigger attacks. The board-state focus moves it closer to a chess-like puzzle than Slay the Spire’s pure card economy. Brutally hard on default difficulty. Paid on Steam.

6. Dream Quest

The single-developer 2014 iOS deckbuilder that Slay the Spire’s creators have credited as the direct inspiration. The graphics are deliberately crude (one person made it), but the deckbuilding-plus-dungeon-crawler structure is the unmistakable Slay the Spire template before Slay the Spire existed. iOS-only — no browser version — but historically important.

7. Card Crawl

Browser-playable. Tinytouchtales’ single-screen card-puzzle game. You’re a dungeon with four card slots; each turn you draw, equip, fight, drink, or stash. Less roguelike than Slay the Spire and more solitaire-adjacent, but the deckbuilder DNA is right there. Free demo plays in browser; the full game is paid on iOS and Steam.

8. Cultist Simulator (web demo)

Weather Factory’s narrative card game. Not a battler — a tarot-and-occult symbol-management game where cards represent skills, allies, and lore fragments. Slay the Spire fans who care more about card synergies than combat will find it the most rewarding pick on this list. Paid on Steam; an official short browser demo exists.

9. Cobalt Core

2023 release. Three pilots, a small spaceship, and a side-on combat grid where positioning matters as much as your deck. The energy economy and ship layout add a layer Slay the Spire doesn’t have. Paid on Steam.

10. Black Book

A narrative deckbuilder based on Russian folklore. You play a young sorceress reading a forbidden book to free her dead fiancé’s soul, drafting spells and resolving choose-your-own-path encounters. Heavier on story than Slay the Spire, lighter on grind. Paid on Steam and consoles.

Which of these runs in a browser?

Honestly: most don’t. Slay the Spire’s success pulled the genre toward premium Steam and console releases, and full deckbuilder runs are not where the browser-game scene focuses. Card Crawl’s browser demo and the Cultist Simulator web piece are the closest to “play right now, no download.” For a fully free, browser-native deckbuilder fix, the next article in this set — our browser deckbuilders list — narrows the field to games that actually run in Chrome.

What makes a good Slay the Spire successor?

Three things show up in every good pick on this list:

1. A reason to draft this card over that one. Slay the Spire’s energy economy and Strike-Defend baseline force real choices. Games that skip that step feel like card games with random rewards.
2. A meta layer that survives losses. Ascension levels, unlockable characters, run modifiers — they’re what make the second hundred runs different from the second.
3. Restraint with rule changes. Inscryption breaks rules deliberately and earns it. Most imitators just pile on mechanics. The genre rewards depth, not surface area.

Frequently asked questions

Is Slay the Spire on browser?

No official browser version exists. Mega Crit publishes Slay the Spire on Steam, GOG, consoles, and mobile, but not for direct browser play. Anything claiming “Slay the Spire unblocked” online is either a different game or unauthorized.

What is the closest game to Slay the Spire?

Monster Train is the most-recommended successor — same single-run loop, same card-energy economy, with a vertical battlefield and clan-mixing system layered on top. Cobalt Core is the next-closest 2023+ release.

Are there free Slay the Spire alternatives?

Free in-browser deckbuilders exist but are fewer than the paid market. Slice and Dice (free web version with optional paid upgrade), Card Crawl’s demo, and most game-jam deckbuilders on Itch.io are starting points.

Which Slay the Spire alternative is easiest for beginners?

Roguebook is the most forgiving — the two-hero structure gives you redundancy when one deck stalls. Wildfrost is the most punishing. Monster Train sits in the middle but reveals its depth slowly.

Is Inscryption like Slay the Spire?

Only in act one. After that, Inscryption transforms into something genre-bending that’s hard to summarize without spoilers. It’s worth playing if you liked Slay the Spire’s runs but want something stranger; it’s not a direct mechanical successor.

The short answer

If you have Steam and want the most Slay the Spire-like experience, buy Monster Train. If you want to push the genre, play Inscryption. If you want browser-friendly deckbuilders right now, jump to our deckbuilder genre piece for the broader picture — and when you need a complete palate cleanser, the Chrome Dino game is a single-button reset from the card-counting fatigue.