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Slay the Spire 2’s Early Access Debut Shatters Steam Roguelike Record, Tops Sales Charts

Mega Crit is treating the sequel as a live development phase targeting one to two years of updates.

Overview

  • Peak concurrent players hit 430,456 on Steam, according to SteamDB, after brief service outages tied to the launch were reported.
  • The game became Steam’s top seller on release day, overtaking Bungie’s Marathon on the platform’s charts.
  • Early Access arrives on Windows PC with four‑player co‑op, five playable characters including newcomers like the Necrobinder and Regent, and systems such as enchantments, card afflictions, and Quest cards.
  • The sequel was rebuilt on the Godot engine following Unity’s runtime‑fee controversy and is verified for Steam Deck, with other platforms expected after full release.
  • Player reception is overwhelmingly positive in early reviews, and the studio clarified a tongue‑in‑cheek post about Marathon as intended sarcasm.