May RTP be checked when it's not listed in the games information?

You will be able to find the RTP of a game according to the game provider, this information can be directly displayed on the game. but some game providers do not display the theoretical RTP directly on the game. if the RTP is not displayed in the game's paytable, try searching for it on the game provider's website.

Sometimes it is present within the game... in the options/information 😉

If the RTP is not displayed then you will have to find out who the provider of the game is

and I think you should look for the provider online and then you will be able to find the RTP of the game, provided the necessary information on the provider's website is complete and up to date of course

You must find the lower of the page , they are very small letters and very hard to find. make sure you playing on licenced casino. but if you want to get best rtp information in real time, i reccommend videoslots.com and mrvegas.com , they have real time rtp every games every single spins

You should go on the Providers Homepage! There you will find them.