Slay the Spire 2 RNG Bug Fixed After Fan’s 8-Hour Dig

A community member’s 8-hour investigation into Slay the Spire 2’s random number generation uncovered a broken loot and encounter system. Mega Crit has since patched the issue. This bug had been quietly skewing card rewards, relic drops, and enemy encounters away from genuine randomness, shaking the game’s strategic foundation.

The situation gained traction on June 18 when a player shared a detailed breakdown showing that the RNG seeding process was causing measurable statistical anomalies. Instead of ignoring the report, Mega Crit acted quickly to verify and fix the underlying code. This patch comes as the early access game boasts 92% positive ratings across 67,353 Steam reviews. This indicates that most players appreciate the developer’s promptness, even if some still feel frustrated.

RNG integrity matters a lot in a roguelike card game — it’s fundamental. When reward pools lean towards certain outcomes, high-skill builds like the Silent’s Ascension 10 strategies (which recently dominated the meta as of June 12) become harder to assess. Players can’t discern if a winning run stems from smart choices or a seeded advantage they were unaware of.

This marks the second major patch within a month. On June 5, Mega Crit released an update that buffed the Monarch’s Gaze card and fixed several other bugs. This shows that they’re actively developing a game still in early access. With 131,980 concurrent players logged in, it’s clear that the studio is addressing a live, busy product — not a stagnant one.

The community’s reaction to the RNG issue has been more intense than the overall review score suggests. While the 92% positive rating reflects long-term feelings, recent tracking indicates a negative trend around this specific problem. Players have pointed out runs that seemed predetermined rather than spontaneous. Fixing the seed system should help restore faith in the game’s core mechanics, but recent forum threads show that short-term perceptions have already taken a hit.

By The Numbers

Steam Review Score	92% positive
Total Steam Reviews	67,353
Current Concurrent Players	131,980
Current Price (Steam)	$24.99
Early Access Release Date	March 6, 2026

Community Pulse: The frustration surrounding this bug reflects a common complaint. One Steam reviewer, echoing a recurring negative sentiment, expressed it clearly: “It’s totally RNG based game.” This criticism hits harder now that the RNG itself has been confirmed to be faulty. That perception issue won’t vanish overnight, even with the patch in place. However, Mega Crit’s quick response to a community-reported bug is the kind of move that tends to rebuild trust in early access communities.

What To Watch

• Meta shifts post-patch: With the RNG system fixed, keep an eye on whether the Silent’s Ascension 10 dominance continues or if it was partly due to the flawed seeding. If build diversity improves, the fix could have deeper gameplay effects than just fixing a surface-level bug.
• Player retention data: With nearly 132,000 concurrent players, Slay the Spire 2 is doing well for an early access game. Watch to see if the RNG controversy leads to a noticeable drop in daily active users as we approach the next reporting period.
• Mega Crit’s patch cadence: Three major updates in about six weeks indicates a robust development schedule. Whether they maintain this pace or slow down for a larger content drop will reveal how close the game is to a 1.0 release.