The ideas how to use these images in game development:

• Use the images as references to create atmospheric locations, level designs, maps
• Create animations, cutscenes 
• Use the images as backgrounds in game's main menu, loading screens, etc. 
• Get inspired by these images to develop your survival horrors, shooters’ multiplayer maps, tower defense games, quests, destruction simulators, city building simulators, etc.

Besides, you may use these images for creating eye-catching banners, posters, social media posts, etc.

These images were created with the help of Midjourney AI, then edited and upscaled using Leonardo AI, then thoroughly edited in Photoshop by me. The images needed 'rebuilding' the architecture, replacing sky, foliage, changing colors, applying filters, removing lots of details, etc.

As a paid member of Midjourney, I own all the assets I created with the help of the AI. Plus, the images were carefully edited. The images are unique, so you can use them where you want without any worries. Free for commercial use.