The lowest Red Tiger RTP I have seen so far is 90.08% + 5% for the localized jackpots - Well of Wishes (it was a MeccaBingo and Grosvenor exclusive at the time of my review)
Well of Wishes RTP at other casinos:
VS - 92.68% without jackpots
Dreamz (MT SecureTrade) - 95.66% without jackpots
SlotsMillion - 93.68% including jackpots
PlayOJO (SkillOnNet) - 94.68% including jackpots (but only has two instead of 3)
Rizk (GiG) - 95.72% including the jackpots
Wildz (Rootz) - 95.72% including jackpots
Just making it easier for us players.
I reaffirm my suspicion that we are just being prepared for even lower RTPs in the future, which IMO will settle anywhere between 90 - 94% at some point.