Shmup with a day-night cycle and simulated weather cycles.
JRPG with a day-night cycle and simulated weather cycles.
1V1 fighting game with a day-night cycle and simulated weather cycles.
Survival horror with a day-night cycle and simulated weather cycles.
Adventure game with a day-night cycle and simulated weather cycles.
Puyo Puyo clone with a day-night cycle and simulated weather cycles.
Paper Mario except he's not paper and jumps around more.
So you're asking for Skyrim.