Mewgenics vs Slay the Spire 2
Cat-breeding turn-based depth vs. deckbuilding perfection — both roguelites, one demands genetic patience.
Updated 12d ago
Makes good on the decade-long Mewgenics dev cycle — McMillen and Glaiel's cat-genetics roguelite hits Isaac territory at 89 MC and 94% recommend.
Still the best in its genre — the new multiplayer co-op alone justifies the buy even in early access.
By the numbers
Prices checked Aug 7; they move faster than we refresh, so confirm on the store page.
Recent-review figures are Steam's own last-30-days window, read Aug 7.
| Measure | Mewgenics | Slay the Spire 2 |
|---|---|---|
| Value Too close to call | ||
| Price now | $29.99 Steam | $24.99 Steam |
| All-time low | $22.49 | $24.99 |
| Cost / hour | $0.39/hr $29.99 · 76 h main story | $2.61/hr $24.99 · 10 h main story |
| Off its low | +33% low was Jun 2026 | At its low low was Mar 2026 |
| Main story | 76 h | 10 h |
| Health Mewgenics wins on player health | ||
| Steam reviews | 90% 52k reviews | 61% 194k reviews |
| Recent reviews | 83% 1k votes · vs 90% lifetime · souring | 67% 6k votes · vs 61% lifetime · improving |
| Peak players | 7,424 Jul 2026 · ↓ 7% MoM | 124,547 Jul 2026 · ↓ 18% MoM |
| Launch peak | 6% of Feb 2026 launch peak · as of Jul 2026 | 22% of Mar 2026 launch peak · as of Jul 2026 |
| All-time peak | 115,063 Feb 2026 | 574,638 Mar 2026 |
| Support | ||
| Last patch | 3 months ago | 8 days ago |
| Patch cadence | 2 in last 90 days | 9 in last 90 days |
| Steam Deck | Platinum | Platinum |
Shared scale — same months across the bottom, same player-count axis up the side, so the two lines are directly comparable. A shorter line means a younger game.
What players say
Patterns from long-haul reviewers, taken from each game's verdict. Not live sentiment — each side is dated below.
Mewgenics
The cat-breeding loop's mutation chains and roguelike adventure variety are what 200-hour fans replay for.
The brutality of losing a well-bred cat line is the wall that ends many long playthroughs.
from our May 2026 verdict
Slay the Spire 2
The new four-player co-op hooks even skeptical friends, and regular updates keep the card pool evolving
Ascension 10 balancing draws consistent frustration — brutal enemy scaling and RNG-heavy bosses feel unfair to many
from our August 2026 verdict
Key differences
Which one is for you?
Pick Mewgenics if
- You loved Binding of Isaac and want a turn-based cat-genetics roguelite.
- You enjoy deep meta-progression across generations.
- You can commit to 200+ hours without burnout.
Pick Slay the Spire 2 if
- You sank 200+ hours into Slay the Spire and want fresh relics.
- You prefer 30-minute runs for quick sessions.
- You want a co-op deckbuilder that keeps solo play intact.
Bottom line
Choose Mewgenics for long-term genetic strategy and turn-based tactics; pick Slay the Spire 2 for the perfected deckbuilding loop and co-op.