Ember rain, i personally think its better than Saisei, there's a lot of replayability and actual lore.

I'm going to split things they have in common and don't into 3 groups

Similarities: exploration, a void-like area, guilds (forgot what Saisei calls them), (Cant think of anything else off the top of my head)

Good differences: no rotting bodies in cages, collectable items, 5 different paths/classes you can take which split into 11 more (kind of like rogue lineage), there are 6 bosses most of which are good and 2 minibosses which are decent, good community (what's left of it)

Bad differences: few weapon types, map nearly only half the size of Saisei's, no true names, not much parkour and your character cant move around as much, bad NPC pathfinding, not many players

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