This market resolves YES if Geometry Dash player Doggie achieves a 100% completion (full verification run) of the Extreme Demon level GRIEF by 11:59 PM CT on September 22, 2026 (the last day of astronomical summer 2026). A valid verification must be a legitimate, unedited, complete run from 0–100% of GRIEF as posted publicly by Doggie on his official YouTube or Twitch channel, or confirmed by the official Geometry Dash Demonlist (pointercrate.com) or the Geometry Dash Fan Wiki/GD Wiki. 'Summer' is defined as June 21 – September 22, 2026 (Northern Hemisphere astronomical summer). Since the market was created on June 28, 2026, verification must occur between that date and September 22, 2026 inclusive.

YES condition: Doggie posts a legitimate unedited 0–100% completion video of GRIEF on his verified social media or streams a live verification run before or on September 22, 2026, AND the run is acknowledged as valid by the GD Demonlist or GD community wiki.

NO condition: No verified completion of GRIEF by Doggie occurs on or before September 22, 2026 at 11:59 PM CT.

Valid evidence sources: Doggie's official Twitch/YouTube channel (live or VOD), pointercrate.com Demonlist entry for GRIEF, geometrydash.wiki.gg, geometry-dash-fan.fandom.com.

Invalid evidence: edited clips, partial runs (anything under 100%), unofficial tracker sites without corroboration, AI-generated content, secondhand screenshots without linked source.

If evidence is missing at deadline: the market resolves NO — the burden of proof is on YES, and if no verified completion is publicly observable, NO wins.

If evidence is fake/edited/recycled: market escalates to admin review and may resolve NO.

If the event is cancelled (e.g., Doggie permanently retires from the attempt before the deadline): market resolves NO — the level simply was not verified in time.

Escalation to admin review: if there is any dispute about whether the run is legitimate (e.g., hacking accusations similar to the SpaceUK incident), the market escalates to admin review before final resolution.

Void conditions: The market may be voided only if GRIEF's level ID is permanently deleted from Geometry Dash servers and no completion can ever be made, making fair resolution impossible.