Terra Tempus
A daily geography and history game, built and published solo under Endpaper Labs. Read a clue about a real historical event, then place it in space and in time. Live on the App Store and Google Play.
Overview
Each round gives you a clue about something that actually happened. You drop a pin on a world map for where, and slide along a timeline for when, and score against both. The interesting constraint is content rather than code: a history game is only worth playing if the history is right. Coordinates and dates come from Wikidata under CC0, the clues are original editorial grounded on Wikipedia under CC BY-SA, and a harvest pipeline stages every candidate event through grounding and review before it can reach a player. The catalogue is organized into region and era modules so play can be endless rather than a fixed set, with an optional daily challenge on top.
Why It Matters
Content as Engineering
The pipeline that decides what is true enough to ship is the real system, and it is enforced in code rather than by discipline.
Licensing Taken Seriously
CC0 facts and CC BY-SA grounding, attributed, with user-facing claims kept inside what the review process can actually support.
A Second Product on Shared Rails
Built on the same scaffold as Verdict, which is what made two live store products feasible solo.
Subject-Matter Fit
My degree is in history, which is why the editorial bar here is set where it is rather than at whatever ships fastest.
Content Pipeline
The hard part of a history game is being right, so the pipeline is the product:
Map and Timeline
Two guesses per round, each with its own interaction and scoring curve:
Technical Architecture
The same monorepo shape as Verdict, with a map renderer and a content system added:
Key Learnings
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