A claim and its source sit on the investigation board, and you have only a few tabs to open the lookups that reveal whether it holds up.
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How to play
Each case presents a claim and the source that made it. Open lateral-reading lookups to gather clues that tip an evidence meter toward reliable or unreliable, but every lookup spends one of your limited tabs. Commit a verdict and earn a bonus for every tab you saved.
Choose lookups: search the claim, see who funds the source, check other coverage, the date, or the method
Each clue shifts the evidence meter toward reliable or unreliable
Tabs are scarce, spend them on the highest-value moves
Commit Reliable, Mixed or Unreliable; unused tabs add an efficiency bonus
Game modes
Difficulty: Easy (3 tabs), Medium and Hard (2 tabs) tighten your budget
Daily: one shared case per day
Practice: a fresh case whenever you want
Controls
Desktop: click a lookup to open it, then click a verdict
Phone & tablet: tap lookups and tap a verdict (mouse or touch only)
Tips & strategy
The strongest opening moves usually reveal who funds the source or whether independent outlets agree
Don't burn every tab, once the meter clearly leans one way, commit and pocket the efficiency bonus
What you'll learn
Sourcecheck teaches lateral reading, the fact-checker's habit of leaving a page to verify it.
Skills: media literacy, lateral reading, fact-checking
Best for: roughly grades 7–12 (ages 12+)
For parents & teachers: lateral reading, the fact-checker's habit.
About Sourcecheck
Sourcecheck is an original free browser game that teaches lateral reading, the fact-checker's habit of leaving a claim to investigate its source, framed as a tab-budget deduction puzzle.
A free, original browser game on PlayPendium. No download, no install.
