The biggest risk is ruining the game for yourself. Kingdom Come Deliverance is exciting because you are weak. If you edit Strength to 20 in the prologue, you will one-shot every enemy, and the story of Henry rising from peasant to knight loses its emotional weight.
Ethical suggestion: Only use the editor for quality-of-life fixes (adding 10 Saviour Schnapps to avoid lost progress) or fixing bugs, rather than turning Henry into a god. kingdom come deliverance save editor
Modifying game files always carries risk. Here is how to mitigate it: The biggest risk is ruining the game for yourself
Want to start as a fully armored knight? Become a master alchemist in 5 minutes? Test endgame weapons against early bandits? The editor enables that. Modifying game files always carries risk