Rainbow King is a cheerful five reel twenty payline online slot by developer Novomatic. The slot is not particularly detailed, but has a nice number of bonus games and features that will keep players interested. All of the twenty paylines are adjustable, with a wager limit ranging from 0.40 up to 100 coins per line. This gives Rainbow King a great appeal to players of all budgets. Rainbow King is a medium variance slot, which means that its payouts are not bad, but not usually exceptional either. This will also appeal to players of all levels, except possibly the very high rollers looking for high level excitement or microgaming no deposit bonus.

Cheerful Theme and Graphics

Novomatic have not gone all out in their creation of graphics for Rainbow King. The graphics are not bad, but are not 3D or terribly exciting. Cartoon style colourful icons grace the screen with cute little animations to go with them. The theme is based around a rotund looking cartoon style king of many colours. His castle and the accompanying obligatory rainbow appear behind the reels, whilst the reels themselves are full of bright colours and edged in gold.

Basic Symbols

There are only six base symbols in Rainbow King and five of those are taken from a deck of cards. 10 to Ace have been colourfully drawn and embossed to look a bit like boiled sweets, but otherwise have no relation to the theme. The sixth symbol is a bag of cash which represents what all the players are aiming to get at. All the other symbols are bonus or special symbols, including a snowflake wild, and three different scatters. The snowflake wild can take the place of any of the deck of cards symbols or the bag of cash, but not the special scatters.

Bonus Games

The first bonus game in Rainbow King is launched by the Rainbow King himself. He plays the part of a scatter symbol and can be found anywhere on the reels. Three or more of him will take you to a board game scenario, where you have to press Start to begin moving around the board. The board layout changes depending on how many symbols you found to begin with. The more symbols you get the better the prizes on the board. The player will keep moving around the board until they hit a Take Money square, in which case the game will be over. This feature can also lead to another little feature on another separate screen with three reels. Here you spin and win based on a sequence of differently coloured 7’s. The feature ends when you hit anything other than a 7.

The Crown symbol is our next scatter, and will launch the King Cash feature. Crowns can be found on reels two, three and four. This is a basic pick me game where you simply choose one of the crowns to reveal a multiplier.

The final bonus feature is the Cash Castle feature. This is triggered by finding three or more Castle icons anywhere on the reels. Choosing a castle here will also reveal a multiplier, but it can go all the way to 500x your stake, which could be very impressive if you are playing with the maximum wager.