Games like Mihirha's Legacy
Games like Mihirha's Legacy include Outer Wilds, OneShot, There Is No Game: Wrong Dimension, To the Moon, and The Rewinder. We matched them by the tags players give Mihirha's Legacy on Steam (Adventure, Story Rich, Pixel Graphics, Sci-fi, and Puzzle): closest matches first, and among equally close ones the better-known games.

Outer Wilds
Shared: Story Rich · Adventure · Space

OneShot
Shared: Story Rich · Pixel Graphics · Puzzle

There Is No Game: Wrong Dimension
Shared: Adventure · Puzzle · Pixel Graphics

To the Moon
Shared: Story Rich · Adventure · Pixel Graphics

The Rewinder
Shared: Adventure · Pixel Graphics · Puzzle

Deliver Us The Moon
Shared: Adventure · Sci-fi · Space

SANABI
Shared: Story Rich · Pixel Graphics · Adventure

Observation
Shared: Adventure · Sci-fi · Space

Impostor Factory
Shared: Story Rich · Adventure · Pixel Graphics

CrossCode
Shared: Pixel Graphics · Puzzle · Story Rich

Out There Somewhere
Shared: Pixel Graphics · Adventure · Puzzle

The Swapper
Shared: Sci-fi · Puzzle · Adventure

DISTRAINT: Deluxe Edition
Shared: Pixel Graphics · Adventure · Story Rich

DELTARUNE
Shared: Story Rich · Pixel Graphics · 2D

Finding Paradise
Shared: Story Rich · Adventure · Pixel Graphics

Sally Face - Episode One
Shared: Story Rich · Adventure · Puzzle

Tales of the Black Forest
Shared: Pixel Graphics · Adventure · Story Rich

The Talos Principle
Shared: Puzzle · Story Rich · Sci-fi

The Turing Test
Shared: Sci-fi · Puzzle · Adventure

Void Stranger
Shared: Adventure · Puzzle · Pixel Graphics

Brothers - A Tale of Two Sons
Shared: Adventure · Story Rich · Puzzle

Papers, Please
Shared: Pixel Graphics · Story Rich · Indie

Thimbleweed Park™
Shared: Adventure · Pixel Graphics · Story Rich

Sanfu
Shared: Adventure · Puzzle · 2D