One-person game studio

Playful games. Honest tools.

Every title is built solo and private by design — your data stays on your device. No accounts, no servers, no tracking.

Games

From the Three Kingdoms and beyond.

Mirror-duel merge tactics, dark RPG, daily math, opera romance, firework slots, and pass-the-phone party games.

Enter the games hall →
MergeholdPartySparkSevenSins
Tools

Small, sharp, honest.

Expense log, decibel meter, fasting timer, screen translator, packing lists, habits, and shift calendars — pay once.

Enter the tool shed →
QuickCostDecibel MeterFastZen

Private by design

Everything is stored on your device. We don't run servers and can't see your data.

Honest pricing

Free tiers stay free forever. No subscription traps, no fake countdowns.

Made for everyone

Every app is fully localized in 34 languages, with dark mode and accessibility support.

About the studio

13apps & games
34languages
0ads, trackers, accounts
1person builds it all

I'm the solo developer behind Sparkfall Games. Every game and tool is 100% native to iOS, localized in 34 languages, and built around one rule: your data stays on your device.

I design, code, draw and compose everything myself, so each app stays small, fast and honest. No investors and no growth hacks — when you buy one of my apps, you're the customer, not the product.

Four promises

  • No ads
  • No tracking
  • Honest pricing
  • Data stays on your device