- 20 free-spins on Sahara Nights (Yggdrasil) slot for registration at egocasino.
- Welcome 100% Bonus and up to 50 free spins on first deposit.
Upgrade Fever from Betsson Group demo version and review of the slot machine
Upgrade Fever from Betsson Group play free demo version ▶ Casino Slot Review Upgrade Fever ✔ Return (RTP) of online slots on February 2021 and play for real money✔
Slot machine review Upgrade Fever
Slot Upgrade Fever which is developed by the provider Betsson Group refers to Video Slots and became available to players 0000-00-00.
Slot machine Upgrade Fever implemented in the subject N/A and represents the field 5-3 from 40 lines and N/A dispersion level.
Average slot recoil Upgrade Fever for the last month was 96.36%
Bonus slot features Upgrade Fever
In total, the slot has several types of bonus features such as:FreeSpins, Scatter symbols, Wild
Also check out the article New Slot Sites
Play the mobile version of the slot machine
Upgrade Fever does not support the mobile version as it is implemented using JS, HTML5.: The last update of the slot was 2018-06-20.