True BG3 completion means multiple playthroughs, not exhaustive single-run exploration. The Dark Urge origin rewrites the story so substantially that it is essentially a different game. Different class combinations unlock different dialogue and quest solutions. The completionist experience is designed to be serial rather than parallel — and each run reveals something the previous run missed. That is healthy completionism: the extra time reveals genuine depth.

Completing every quest in The Witcher 3 adds something that few other games' side content does: perspective. The Bloody Baron questline, experienced completely, is one of gaming's most morally complex stories. The secondary contract questlines introduce characters as developed as the main cast. Completing The Witcher 3 fully means having read a novel-scale narrative that the main story alone does not deliver.

Elden Ring's full completion — all bosses, all dungeons, all NPC questlines — is the only way to fully understand the game's story. The NPC questlines in particular, which are easy to miss and require specific sequencing, provide the most important character context in the game. Completing them fully means understanding a narrative that is only fragmentarily visible in a single standard playthrough.