What types of escaperooms are there?

In general, one can make the following classification:

• 1st generation escaperoom: mainly focused on the puzzles.
  Little technology so lots of number and letter locks.
  If the operator can keep the room uptodate, this could definitely still be a very fun room.
• 2nd generation escape room: a mix between between typical locks and technology.
  Background music with more attention to the decor.
  For example: Surgery (Leuven)
• 3rd generation escaperoom: more technological gadgets, more media & sound effects.
  More eye for the interior and elaboration of the story.
  For example, Prison Orcus (Leuven).
  In this segment, there are already rooms where there is no traditional padlock at all.
• 4th generation escaperoom: Everything is even more elaborated according to the theme with unique objects, special effects and regularly also with an actor present.
  The main focus is on the experience.
  The duration is regularly more than 60 minutes and the rooms are very spacious.
  The price can therefore be slightly above average.
  Examples: The Movies by the Push (Bruges), Le Prince in Retie or Escapehouse Emerantia (Leuven).

This is in outline and layout was made by someone who has been following the industry for 6 years and has played over 50 rooms.
Suggestions and comments always welcome.