Switching engines is a big deal! In this talk, 11 bit studios—and the “Frostpunk 2” team—will help you bypass the mistakes they made as they moved from their proprietary Liquid Engine to UE. Topics include: biggest challenges, internal QA changes, feasibility planning, and what came next.
https://dev.epicgames.com/community/learning/talks-and-demos/JbJP/unreal-engine-from-liquid-to-unreal-why-we-ditched-our-in-house-engine-unreal-fest-2022