Steam coupons are usually given out on Christmas, during game promotion and when you buy other games. Coupons are applicable only on some particular games online.
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On game promotions
Steam coupons are usually given out when one participates in a new game promotion. These coupons include 75% on a game. This means that when you buy the game during that period, you will get the said percentage discount.
These coupons are usually distributed across game players on steam to promote.
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Slot machines
Frozenbyte occasionally gives out coupons for games like trine and shadow grounds. Here you play a mini game with a slot machine. Upon getting three of a kind, you could win coupons for trine 1, trine 2, shadow grounds and shadow ground: survivor.
Usually there is a cool down period for like ten minutes. If you keep playing you can end up with a dozens of coupons.
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Step #1 View coupons
To view your coupons, go to games on the main menu and select manage gifts and guest passes.
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Step #2 choose ‘coupons’
On the drop down menu on your item inventory window choose ‘coupons.’ Here you can view your coupons.
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Remember coupons are only available for specific games.
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