Games like Lenna's Inception
Games like Lenna's Inception include Undertale, DELTARUNE, The Henry Stickmin Collection, South Park™: The Stick of Truth™, and Finding Paradise. We matched them by the tags players give Lenna's Inception on Steam (Funny, Multiple Endings, Pixel Graphics, Singleplayer, and Female Protagonist): closest matches first, and among equally close ones the better-known games.

Undertale
Shared: Multiple Endings · Funny · Pixel Graphics

DELTARUNE
Shared: Funny · Pixel Graphics · Singleplayer

The Henry Stickmin Collection
Shared: Funny · Multiple Endings · Singleplayer

South Park™: The Stick of Truth™
Shared: Funny · Comedy · Singleplayer

Finding Paradise
Shared: Pixel Graphics · Funny · Singleplayer

Dungeon Munchies
Shared: Pixel Graphics · Funny · Action

SANABI
Shared: Pixel Graphics · Action · Singleplayer

CrossCode
Shared: Pixel Graphics · Female Protagonist · Singleplayer

Rise of the Tomb Raider™
Shared: Singleplayer · Female Protagonist · Action

Tomb Raider Game of the Year
Shared: Female Protagonist · Action · Singleplayer

Shovel Knight: Treasure Trove
Shared: Pixel Graphics · Retro · Action

Reventure
Shared: Pixel Graphics · Multiple Endings · Adventure

Assassin's Creed® Odyssey
Shared: Singleplayer · Multiple Endings · Action-Adventure

Broforce
Shared: Pixel Graphics · Action · Funny

Portal 2
Shared: Singleplayer · Funny · Female Protagonist

Pizza Tower
Shared: Funny · Pixel Graphics · Singleplayer

Stellar Blade™
Shared: Female Protagonist · Action · Singleplayer

UnderMine
Shared: Pixel Graphics · Action · Singleplayer

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

Evoland
Shared: Singleplayer · Funny · Retro

Eastward
Shared: Pixel Graphics · Singleplayer · Adventure

Duck Game
Shared: Funny · Pixel Graphics · Action

To the Moon
Shared: Pixel Graphics · Singleplayer · Adventure

Rhythm Doctor
Shared: Pixel Graphics · Singleplayer · Funny