Reef Run, officially released on October 1, 2014, is an Internet casino game made by Yggdrasil Gaming. A marine life-inspired slot game, Reef Run was among the earliest releases from the then newly started gaming company. Incidentally, Yggdrasil has other underwater-based online games, most notably Golden Fish Tank (February 2016). Reef Run’s rival games include Cash Reef from Habanero Systems, Dolphin Reef from NextGen Gaming, and Sunshine Reef from Microgaming.

A reef refers to the sandy, rocky, or coral bar that forms underwater, especially through marine algae influence. In the background of the grid, there is a winding causeway that is runs along the rocky reef; it is on this causeway where the featured animals compete during the Golden Bet game rounds. Players match three, four, or five marine animals.

Reef Run Game Characteristics
Reef Run has a volatility rating of 45, 20 fixed pay lines, and a 5X3 grid. There are seven symbols only. Based on common marine animals, the six regular symbols are: a green blowfish with a blue mouth and tailfin; a red and black crab with a white underbelly; a yellow and purple mantis shrimp; an orange-colored octopus with a girlish decorated face and holding a white makeup brush in one of its arms; a yellow and blue sea slug in a purple shell; and a pale purple seahorse. There is also a “Free Spins” symbol.

These are the Reef Run coin values: $0.01, $0.02, $0.03, $0.05, $0.07, $0.10, $0.20, $0.30, $0.50, $0.70, $1.00, $2.00, $3.00, $4.00, and $5.00. The Reef Run total bets are: $0.20 (the minimum total bet), $0.40, $0.60, $1.00, $1.40, $2.00, $4.00, $6.00, $10.00, $14.00, $20.00, $40.00, $60.00, $8000, and $100.00 (the maximum total bet).

The following are the Reef Run payouts for three, four, and five matching symbols. The green blowfish pays X30, X200, and X1000. The multicolored crab offers X20, X100, and X500. The yellow and purple mantis shrimp has X15, X75, and X400. The orange girlish octopus pays X10, X50, and X200. The sea slug offers X5, X40, and X100. The seahorse pays X5, X30, and X75.

According to the starting page, a single pay line in Reef Run can offer as much as 20,000 coins. Two, three, four, and five “Free Spin” symbols offer two free spins, ten free spins, 20 free spins, and 60 free spins, respectively. During the free spins, any of the six marine animals can become X5, X10, or X20 multipliers.

Although costing five more coins than the regular game, the optional Golden Bet is worth it as it lets the players select their preferred animal in preparation for the race, which offers the following Mystery payouts. The maximum payouts when a sea slug, a sea horse, a mantis shrimp, an octopus, a crab, or blowfish wins the race are 2500 coins, 5000 coins, 7500 coins, 10000 coins, 15000 coins, and 25000 coins, respectively.

Reef Run has a $88000 non-progressive jackpot. Its software is customarily good; the bubbly sound effects and the personified sea animals are interesting to watch; and the animated graphics are equally entertaining, especially when they rotate joyously during winning rounds.

Luck in Reef Run
Reef Run is a game of chance whose return to player rate is 94.6%. The house edge is 3.6%.