Playing History 2: Slave Trade by danish developer Serious Games Interactive, has had a rough time ever since people found out, that part of the game consisted of stacking black slaves in a Tetris style manner, in order to fill up your slave ship with as many as possible.
Now, the game is supposed to be shocking and brutal, and therefore have educational value, and that point was made by CEO Simon Egenfeldt to several people on Twitter (captured by Buzzfeed):
"Slave ships were stacked as tetris.. point is to disgust people so they understand how inhumane slave trade was- search the net
A game is not necessarily just a medium for fun. - it can be used to educate - quite effectively actually.
we have made games about sweatshops, israeli-palestinian conflict, plague, debt slavery.nazi era have lots of games"
Since then, Simon Egenfeldt has closed his Twitter account, but the game seems to still be available on Steam, where you can also download the educational material and reasoning behind the development. However, the Slave Tetris part of the game has since been removed.
The release of Playing History 2: Slave Trade has once again opened the debate of the game medium, and how and if interactive storytelling can take on more challenging subject matters.

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