The upright and Standup slot machine is played when standing. 2010 wurde Greentube von der Astra Games Ltd. With modern computer technology, there are different concepts for the slot machine. Der Spieler bekommt daher einen guten Einblick, welche Gewinnchancen beidieser Slotmaschine bestehen und wie hoch diese sind. The player may be paid like hand pay while the attendant may also refill a machine. Slot machines are the word from American English and in British English, they are called Fruit machine while in Scottish English, they are known as puggy. . The Convenience of Playing in Demo Mode. It is easy to enjoy free slot game where there is no need of downloading the software or to install anything. There are vivid colors and they can impress and can capture the eye of the player. . Every slot found in the group, it will contribute a certain amount to the progressive jackpot.