Credits & Attributions

Maps & Geography

World, continent and country SVG maps from SimpleMaps — SVG Maps.
The Singapore planning areas map and the outline of the Singapore biggest towns map contain information from Master Plan 2019 Planning Area Boundary (No Sea) by the Urban Redevelopment Authority, accessed on 4 October 2026 from data.gov.sg, which is made available under the terms of the Singapore Open Data Licence version 1.0.
The Denmark municipalities map contains data from the Danish Agency for Data Supply and Infrastructure (SDFI, formerly Geodatastyrelsen): Danmarks Administrative Geografiske Inddeling (DAGI), February 2014, via Open Knowledge Denmark.
The interactive map quizzes use country and state shapes from Natural Earth (public domain).
Interactive map quizzes are powered by MapLibre GL JS (3-clause BSD).
The periodic table layout is rendered from our own SVG; element data is public domain.
Country flag imagery sourced from public-domain / open flag sets.
Footballer photos in the World Cup quizzes are freely-licensed images from Wikimedia Commons (CC BY / CC BY-SA / CC0, notably by Bryan Berlin, CC BY-SA 4.0). Per-photo attribution is shown in each quiz's "Photo credits" section.
City photos in the Higher or Lower quizzes are freely-licensed lead images from Wikimedia Commons (CC BY / CC BY-SA / CC0 / public domain). The photographer and licence are shown on each card as you play.
Car photos in the Order by Car Price quiz are freely-licensed images from Wikimedia Commons (CC BY / CC BY-SA / CC0). The photographer and licence are shown on each card as you play.

Anatomy Diagrams

The human skeleton diagrams (front and back view) and the animal cell diagram are by Mariana Ruiz Villarreal (LadyofHats) on Wikimedia Commons, released into the public domain.
The human muscles diagram is adapted from Muscles front and back by OpenStax, Tomáš Kebert and umimeto.org, licensed CC BY-SA 4.0. We regrouped the shapes by muscle and cropped the drawing. Our version is licensed CC BY-SA 4.0 too.
The human organs diagram is adapted from 202403 human anatomy organs by the DataBase Center for Life Science (DBCLS), licensed CC BY 4.0. We cropped the drawing and added the outlines that you click.

Pokémon Assets

Pokémon sprites and data via PokéAPI and the PokéAPI sprites repository.
Pokémon, Pokémon character names, and all related media are trademarks of Nintendo, Game Freak, and The Pokémon Company. TRIVI.GG is a fan-made educational quiz site and is not affiliated with, endorsed by, or sponsored by any of these companies.

Design, Fonts & Icons

Built with Blazor (.NET) and a custom, hand-rolled design system — no third-party component framework.
Icons from Font Awesome (free icon set).
Typeface: Nunito (SIL Open Font License). TRIVI.GG serves the font files and the icon files from its own server.

Open-Source Libraries & Services

Supabase — PostgreSQL database, authentication and the supabase-csharp client.
Blazored.LocalStorage for client-side persistence, and MailKit for email.
Orchestration and telemetry via .NET Aspire and OpenTelemetry.

Notice an Issue?

If you believe an asset on TRIVI.GG should be removed or attributed differently, please contact us at [email protected] or via the contact form and we’ll address it promptly.

Credits & Resources