This video slot from Microgaming’s collection shows you a big robotized factory far away in the future. This uncommon theme in conjunction with five free spin modes makes the slot a highly popular alternative for many slot enthusiasts who like unconventional solutions that go beyond mere wilds and scatters. The slot has 243 ways to win and no selectable paylines so there are fewer bet options than usually; these are a coin size ($0.01–$0.25) and the amount of coins (up to 10 per line). A bet is limited to $0.30 in the low end and to $75 at highest. Top three prizes are $7500 (five scatters), $6250 (five wilds) and $3125 (five robots). Low-paying cards J-A award $625 at max.

Bonus features

A wild (Logo) is hardly the most important and intriguing symbol in Robo Jack but its advantage is that it can complete its own combinations when two or more land on adjacent reels. Five wilds produce the second-largest jackpot.

A scatter is perhaps one of the few symbols you would look forward to coming across on the reels, since they pay x30 to x3000 and, what’s more important, trigger an enthralling free spin selection bonus. Once activated, you will see five cylinder tanks, each having a unique robot inside. You are prompted to pick any tank and the robot that appears from that tank has a unique special power to help you during free spins. If you are not satisfied with the selection, you are given one chance to try again. The five robots provide these boosters and bonuses:

• 12–60 free spins (FS’s) with an extra wild
• 12–40 FS’s with scatter awards. The scatter occurring during the feature gives a random multiplier of up to x10
• 4–20 FS’s with a wild reel that emerges on every spin
• 10–65 FS’s with scatter retriggers. Basic spins with no multipliers. Two scatters in any position award 8 additional FS’s.

360,000 coins is the highest prize that the player can win as a result of free spins.