The Jack's T-Rex slots game is produced by Sheriff Gaming. One of the younger casino games produces, Sheriff Gaming specialize in producing 3D slots games. As a standard Sheriff Gamings publish only the highest house edge/lowest RTP that the game can be set to. Jack's T-Rex has a maximum house edge of 30%. Spin and Win casino give two different figures for the house edge settings they use; the Spin and Win website lists the house edge as 7.8% and their affiliate website Lucky Jar lists the house edge as 5%. We consider the figure from the casino site - 7.8% - more likely to be accurate and would suggest that the possible range of house edge settings are 5-30%.
Big dogs are controversial - try keeping a T-Rex in your back yard and see what the neighbours say.
This game is a 5 reel game with 20 paylines and you can bet 5 coins on each payline.
The ‘T-Rex' symbol is wild and if it lands on reel 3 expands to cover the entire reel.
There are two bonus features when playing Jack's T-Rex. The first bonus feature is activated when you receive 3 or more of the 'Government Agent' scatter symbol anywhere on the reels. When this happens you will be awarded between 3 and 9 complimentary spins depending on how many Government Agent symbols you received. The complimentary spins are played on a set of reels with a far higher payout for the player.
The second bonus feature is activated when you receive 3 or more of the 'Egg' symbol anywhere on the reels. When this happens you will be asked to click on the Egg symbols one at a time. Each symbol will award a prize. The bonus feature ends when one of the symbols reveals 'Collect'.
Conclusion
With a massive range of possible house edges wherein the casino could potentially set the game to charge 30% - comparable to lottery prices - unless the venue you are playing at gives details of the settings they are using you should avoid this game at all costs. Even at 7.8% Jack's T-Rex is charging a very high price for a game only a little better than average.