EST. A REALLY, REALLY LONG TIME AGO
RUN FOR
YOUR PAST.
One dinosaur. One determined caveman.
Absolutely no historical accuracy.
The internet’s oldest game of tag.
Removes humans, mammoths, and inventions. Switching timelines resets the run. Each mode has its own personal best.
Extinction can wait.
The caveman? Not so much.
How that went.
- SURVIVAL TIME
- 0:00.0
- JUMPS STARTED
- 0
- OBSTACLES CLEARED
- 0
Make a mistake. Become art.
Your last six failed runs become paintings on passing rocks. Save a postcard to take one with you. Generated on your device, never uploaded. No historians were consulted.
A pristine cave. An unblemished record. Give it a minute.
Been there. Barely survived.
Survive seven different Chaos encounters to complete your journal. All three evolution forms count separately. Saved only in this browser, independently of your scores and cave paintings.
Pack your past.
Take both timelines’ records, ghosts, cave paintings, and field notes to another browser. Download a save file here, then open it there. No upload, no account. An unfinished run and device settings stay on this device.
Opening a file pauses your run. You can preview or cancel before anything changes.