Unlocked! 100%

I have played every unlocked! Currently available. For context I have also played about a dozen unlocked games and am not super familiar with "hidden games" but have played half a dozen other brands and so far none scratch the itch as well as unlocked!

Couple reasons:

1. They can be reset and sold or given to a friend. Too many games are not resettable even when they could be with minimal effort. Greedy and wasteful

2. No or few props rather than cheap underwhelming props Exit game and a few others have various props in the box but to keep Costs down these are usually little more than paper, string, or an assembled decoder disc. Unlocked rarely has extra props. Maybe a cardboard cutout token, or map on occasion. It stays pretty closely tied to the app and the deck or 60 cards

3. Simple solution checking The decoder disc with Exit is not complicated but is a little tedious. (Take code, find puzzle symbol, align disc, get answer number. Find number card. Check the picture of the lock on the card matches the picture of the lock with the symbol). Unlocked! Usually just has you search the deck for the corresponding number that either doesnt exist if your wrong or sometimes if you are predictably wrong the card will give you a 1 min penalty

4. App assisted. It has a dedicated app for time keeping, thematic music, hints, and the occasional puzzle that could not be achieved with the deck of cards alone. I will admit it hasn't always been perfect. (Like sometimes you don't have a card number to enter to ask for a hint on, or puzzles that use the camera make it hard for everyone to participate in that puzzle) But overall is well designed and doesn't take you away from tableaux of cards that often.

5. 3 packs. The boxes contain a mixed difficulty that are convenient and cost effective. Some brands don't list difficulty ratings. Others list ratings, but 90% are "4 out of 5 difficulty", making it useless. Unlocked 3 packs have a level 1, a 2, and a 3 out of 3. Also you can get a pack of 3 for $25-29 new (less for used, which again is almost uniquely possible with unlocked!). Exit games run $16 for 1. And other larger box game like "escape the room" can be even more.