Honkai: Star Rail

Star Rail's trick was recognising that the expensive part of Genshin Impact — a seamless open world — was not the part players loved most. Strip it out, replace it with a turn-based combat system and linear, densely written zones, and you get a game that costs less to make, runs on anything, plays beautifully in short sessions, and tells a much better story.

The writing is the genuine surprise. Star Rail is funny, self-aware and structurally ambitious in a way that gacha games almost never are, with individual planet arcs that build to real payoffs. The presentation supports it: character animation, a superb soundtrack, and menu design so polished it is worth studying.

Combat and endgame

The combat is a speed-and-turn-order system with elemental weaknesses and break mechanics — light on the surface, with real optimisation depth for players who engage with the endgame. That endgame is the weak point: three rotating challenge modes, refreshed on a schedule, and outside them the content is comfortably cleared on auto-battle.

The same warning applies as with Genshin, and applies to every entry in this category: this is a beautiful free game funded by a small minority of players spending enormous sums, and every system is engineered to move you toward that minority. It is more generous than most and that does not change the shape of the machine.