Tools that prove.
Games that breathe.
Shrinfinity™ is an independent product studio. One wing builds verification tools that hold up when things are disputed. The other builds games designed for calm, thoughtful play. Both are built the same way: carefully, and completely.
Choose a wing
The Tools wing
Software for trust: verifiable approvals, handoff confirmations, and tamper-evident records. Flagship: ProofTrail™ — live now.
Enter ToolsThe Games wing
Games that reward reading the board, not racing it. Flagship: Koi Drift — a living-pond path puzzle with 101 painted koi to collect. Playable free in your browser.
Enter GamesWhat we build
We build standalone products designed around a single idea done properly — whether that's a record two parties can verify, or a pond you learn to read. Each product is self-contained, honest about what it does, and built for reliability, not novelty.
Verification tools
Products that create clear, shareable records of important events and transactions.
Thoughtful games
Puzzles built on observation and calm escalation — depth that comes from seeing more, not tapping faster.
Careful craft
One thing at a time, shipped when it's ready. Every product earns its place in the portfolio.
Live from each wing
ProofTrail
Approvals, handoffs, and records that hold up when disputed.
ProofTrail™ is an independent product from Shrinfinity. It lets you document approvals, run handoff confirmations, and create shareable verification records — so when something gets disputed, the evidence is already in place. No enterprise system required.
- Create timestamped, tamper-evident records
- Share public verification pages both parties can access
- Generate verifiable PDFs and confirmation receipts
- Run structured handoff confirmation workflows
- Build audit-ready confirmation trails
- Plain-English — no enterprise setup required
Koi Drift
Read the pond. Find your drift.
Koi Drift is a path-puzzle set in a living pond. Tap a koi only when its full path to the pond's edge is clear — then deeper waters bring bending koi, timed predator lanes, and boards that ask you to read before you move. Every pond you clear grows a collection of 101 painted koi cards.
- One-tap path puzzle: clear a koi only when its way out is open
- Two ways to play: Deep Drift (predators, timing, hearts) and Calm Drift (no timers, no fail)
- Collect 101 hand-painted koi cards, each with its own guardian ability
- A daily pond, streaks, and festivals as you drift deeper
- Free to play in the browser — installable, offline-friendly, 14 languages
- Optional one-time Drifter's Pass unlock — no subscriptions
A focused portfolio, built carefully
We build one thing at a time and build it properly. Our portfolio grows intentionally — each product earns its place by solving a specific problem well, or by being genuinely worth someone's quiet hour.
Build practical tools
We focus on tools that solve real problems clearly. Not solutions looking for a problem.
Keep workflows understandable
Complexity should live in the code, not in the user's experience. Every flow should be readable.
Use plain language
No jargon overload, no mystery steps, no technical over-explanation by default.
Respect trust and evidence
Our products handle real records and real decisions. We design them with appropriate care.
Ship carefully
Speed matters, but not at the cost of reliability or honesty. We release when it is ready.
Stay product-first
We are a product company, not a consulting shop. Every decision is made with the product in mind.
Start on either side
Put ProofTrail to work on approvals and handoffs that need to hold up — or take a quiet run through the pond in Koi Drift. Both are live today.