Belmont's Curse Demo Runs 30fps on Switch, 60fps Everywhere

Konami has a date, and it’s a split one. The free Castlevania: Belmont’s Curse demo launches October 1, two weeks ahead of the full game on October 15, and your progress carries over to the paid release — as long as you buy on the same platform you demoed on. Konami says the demo hits 60fps on PC, PS5, and Xbox Series X|S. The base Nintendo Switch build runs at 30fps.

That gap is the entire handheld conversation. Belmont’s Curse is a Metroidvania from Evil Empire — the Dead Cells support studio behind The Rogue Prince of Persia — and that pedigree means combat built on tight dodges, whip timing, and momentum-heavy traversal. It’s the genre where frame pacing and input latency aren’t academic; they’re the difference between a clean parry and a death you’ll blame on the hardware.

The Switch Is the Only Handheld Here, and It’s the 30fps Version

For handheld players, the platform math is unusually clean: Switch gets a build, PC gets a build, and nothing in between is confirmed. The PC version is the one that matters for Steam Deck, ROG Ally, and Legion Go owners — all of them run a target Konami is already calling 60fps, and a 2D Metroidvania descended from Dead Cells sits squarely in the performance envelope those chips handle without breaking a sweat. If Belmont’s Curse can’t hold 60 on a Steam Deck, something has gone badly wrong in the porting.

The Switch number deserves scrutiny, though. Hollow Knight, Metroid Dread, and Blasphemous all hold 60 on the same silicon, so a Metroidvania shipping at 30 isn’t a platform ceiling — it’s a budget and optimization call, and Konami is showing you where it landed two weeks before launch. For a game whose developers say you should find joy in its difficulty, halving the frame rate on the most portable platform is a tangible friction point, not a footnote.

Your Demo Save Won’t Follow You Across Devices

Konami’s save transfer is platform-locked: demo on Switch and buy on Switch, or the opening chapter you played is gone. That’s standard console policy, but it’s an awkward fit for a genre that’s become a handheld staple. If you spend October 1 testing the free chapter on a Switch, then decide the 30fps cap isn’t for you and pivot to the Steam Deck build, you’re starting over — precisely the multi-device, tinkering audience Konami should want to keep.

The Switch 2 question lingers underneath all of this. Konami hasn’t announced a native port, but it’s the machine best suited to this game: a Metroidvania built around a 60fps ceiling would be a natural showcase for the sequel’s hardware, and its absence through the demo window reads less like a decision and more like an announcement waiting on timing. For now, the pragmatic call is simple — lock in your platform before October 1, because the demo is a one-way door.