[Peters Township Public Library] The Hogwarts escape
https://sites.google.com/view/ptpl-virtual-escape-rooms (available in many languages)
[SchoolBreak] No more walls!
https://sites.google.com/view/nomorewalls/ (in English)
[SchoolBreak] Breakout of creativity
https://sites.google.com/view/uoc-breakout-creatividad (en Espanol)
[Genially] Escape del terror con Pitagoras
https://view.genial.ly/5f95c57bdf557b0d1e596d1f/interactive-content-escape-del-terror-pitagoras (en Espanol)
Educational escape room developed in Scratch by in-training mathematics teachers
https://scratch.mit.edu/projects/984610834/ (in Italian)
Eddy's Secret - Educational escape room on educational robotics
https://eddy.espace-des-inventions.ch/school/[Breakoutedu] Caught in code (Informatics)
http://student.breakoutedu.com >> you can register and use classcode 15T2GL to join a class and try building your own educational escape room!
Mystery of Time and Space (MOTAS)
https://www.albinoblacksheep.com/games/motas Born as a "point and click" game, regarded as the grand father of escape rooms
Crimson Room
https://www.crazygames.com/game/crimson-room One of the first online escape rooms with this name
[Neutral] Sign
https://neutralxe.net/room/sign/play.html