I've never played a game where it was more obvious that the developers really played and enjoyed their game. It's just brimming with QoL features.
IIRC, a number of the team members started as players.
Factorio is in that top-tier. I just tried Core Keeper and had the same feeling, gushing with QoL and thoughtful design. Refreshing to play sandbox-y games where mods don't feel mandatory.
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The modern doom saga gives me the same vibes. The team really poured their hearth in it!