You can use DEC (earned from Splinterlands) to buy Steam Games!
Do you know that you can buy video games on the STEEM blockchain? A website called DGameMarket allows users to buy & sell Games (in form of Steam keys) for STEEM, SBD, BATTLE and DEC tokens of course!
The website is run by @dgameshop and it offers a marketplace for people to buy/sell Steam keys, I already made 18 transactions on DGameMarket (buys and sells combined,) and I can assure you that it works!
WARNING: When buying from DGameMarket, you're actually buying games from other STEEM users. Make sure you trust the seller before clicking the buy button.
Last year I've been selling Humble Bundle leftover games on the STEEM blockchain. I put the list of the games I have and when someone replies, we meet in a discord chat and make our transactions manually.
I decided to move the games my shop to DGameMarket because it's automated so I don't have to be online all the time, and because it offers all the tokens I want to be paid with (STEEM, SBD & DEC.) If you're interested in the games I put some of them in the list below:
The selection of games in DGameMarket isn't strong yet, but I promise to put more games in the website if I saw enough demand on the games I have in there now. If there's a game you'd like to buy that's not in the website, please tell me in comments I might be able to provide it.