Source Check

Each case presents a claim and a stack of source documents, letters, photos, articles and more. Mark each source Accept or Reject, then deliver a verdict on whether the claim is supported. Scoring rewards trusting reliable, corroborated evidence and punishes accepting a lone or forged document.

• Read the claim and weigh every source against it
• Accept the sources you trust as evidence; reject the rest
• Deliver your verdict, supported or refuted
• Accept only reliable sources that another reliable source independently corroborates

• Desktop: click Accept or Reject on each source, then click Deliver Verdict
• Phone & tablet: tap the Accept/Reject buttons and Deliver

• A single document that nothing else backs up is risky, corroboration is what makes evidence trustworthy
• Forgeries are designed to look convincing; rejecting one is worth more than accepting two genuine sources
• Easy, Medium and Hard add more documents and trickier forgeries

Source Check is a media-literacy and historiography game about evaluating evidence and corroboration, vital skills for any reader.

• Skills: media literacy, historiography, evaluating sources, corroboration
• Best for: roughly grades 8–12 (ages 13+)
• For parents & teachers: the core skills of media literacy.

Marking each document Accept or Reject and then ruling on whether the claim is supported is source criticism, the historian's core method.

Separating the two judgements is the original structure.

They genuinely come apart. A claim can be true while every document offered for it is unreliable, and a stack of good sources can fail to support the specific claim made — so evaluating the evidence and evaluating the conclusion are different acts, and conflating them is how bad history gets written.

Source Check is an original media-literacy and historiography game about evaluating evidence and corroboration. Play free in your browser with daily and practice cases.

A free, original browser game on PlayPendium. No download, no install.