Like all your assets these look amazing, but can they actually be used commercially? It's extremely obvious they are based on Warhammer 40k and Space Marines, Imperial Guard and Genestealers to the point Games Workshop could argue they are copied, and GW tends to take their IPs very seriously.
Viewing post in Minifantasy Scifi - Space Derelict comments
Hi FokionK,
Thanks for reaching out, I totally understand your concerns. From what I understand, you should be ok as long as you don't include any trademarks, registered names, or places in your game, or mislead anyone into thinking your game is an official product of a specific franchise.
The asset pack is inspired by dark sci-fi, and reflects the pop culture interpretation of this genre's tropes, but in the characteristic artistic style of Minifantasy.
Given that your intention is to craft your own story set in your own universe, I believe you shouldn't encounter any issues. But remember, I'm not a lawyer and my knowledge doesn't cover all the legal aspects from every country. If you think that your project might raise questions or concerns, it's always a good idea to get some professional advice to make sure you're on the safe side.
Please, don't take this as legal advice as it's just my understanding of the situation. Always consult a professional if you're unsure. Hope this helps!