What This Pulls Up
Drop in a game's link, or just the place ID, and it goes and checks Roblox directly for the current player count, total visits since launch, favorites, and the like-to-dislike ratio. Same numbers Roblox shows on the game's own page, just without having to load the full site.
Finding the Link
Open any experience on Roblox and the address bar will show something like roblox.com/games/PLACEID/Game-Name. Paste that whole thing in, or just grab the number in the middle, either one works fine.
What "Playing Right Now" Actually Means
This counts people currently sitting in a server for that game at this exact moment, not total players ever or daily active users, which would be a different, larger number. It moves around constantly depending on time of day.
Visits vs Favorites vs Likes
Total visits just keeps climbing, it's every session ever started, even the same player joining twice counts twice. Favorites is closer to a measure of real interest, someone bookmarking the game to come back to. The like ratio comes from upvotes divided by total votes, the same percentage shown under the thumbs icons on Roblox itself.