O3DE[0] looks interesting - owned by the Linux Foundation, originally based on Amazon's Lumberyard, and it has some big players involved: Amazon, Epic Games(!),

O3DE[0] looks interesting - owned by the Linux Foundation, originally based on Amazon's Lumberyard, and it has some big players involved: Amazon, Epic Games(!), Microsoft, NVIDIA, Intel, Huawei, Red Hat, and more. Seems to be in very early stages though. [0] https://o3de.org https://o3de.org