About this app
Dr. Grammar needs your help to solve a series of grammar puzzles in order to navigate through and power up his lab! Play as Experiment 207 and explore five unique areas of the lab all designed around simple physics concepts. Solve grammar puzzles related to capitalization, commonly confused words, fragmented sentences, Latin root words, and genre in order to power on each sector. The ultimate goal is to use your skills and free yourself from Dr. Grammar’s lab!
Latest release
What’s New
Dr Grammar has been updated to use the latest version of the Unreal 5 engine.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 20, 2026 · 10:42 PM Free