Taking a look at one of their releases: https://store.steampowered.com/app/1276800/CONVERGENCE_A_Lea...

Seems like a generic platformer priced at €30, but don't worry! You can also buy skins for a couple extra €.

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Looking at another one: https://store.steampowered.com/app/2252143/The_Mageseeker_A_...

An action RPG where you can buy extra spells for your character as a DLC...

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Hmm, no idea how their business model didn't work out.