Games like That's An Order Ensign
Games like That's An Order Ensign include Portal, Defy Gravity Extended, There Is No Game: Wrong Dimension, Pikuniku, and Gunpoint. We matched them by the tags players give That's An Order Ensign on Steam (Casual, Comedy, Puzzle, Action, and Quick-Time Events): closest matches first, and among equally close ones the better-known games.

Portal
Shared: Puzzle · Comedy · Puzzle Platformer

Defy Gravity Extended
Shared: Puzzle · Puzzle Platformer · Space

There Is No Game: Wrong Dimension
Shared: Puzzle · Comedy · Casual

Pikuniku
Shared: Casual · Puzzle · Action

Gunpoint
Shared: Puzzle · Comedy · Action

The Swapper
Shared: Puzzle · Sci-fi · Space

Plants vs. Zombies GOTY Edition
Shared: Casual · Comedy · Puzzle

Zup! 4
Shared: Casual · Puzzle · 2D

Broforce
Shared: Action · 2D · Pixel Graphics

Human Fall Flat
Shared: Puzzle · Action · Puzzle Platformer

Out There Somewhere
Shared: Puzzle · Action · Pixel Graphics

Haunt the House: Terrortown
Shared: Casual · Action · Comedy

Zup! 2
Shared: Casual · Puzzle · 2D

LIMBO
Shared: Puzzle · Puzzle Platformer · 2D

Scribblenauts Unlimited
Shared: Casual · Puzzle · Comedy

Zup!
Shared: Casual · Puzzle · 2D

McPixel
Shared: Comedy · Puzzle · Action

LOCKDOWN Protocol
Shared: Casual · Action · Space

Zup! 8
Shared: Casual · Puzzle · 2D

Toki Tori
Shared: Casual · Puzzle · Action

Planet of Lana
Shared: Action · Puzzle · Puzzle Platformer

Zup! 3
Shared: Casual · Puzzle · 2D

Zup! 5
Shared: Casual · Puzzle · 2D

Zup! S
Shared: Casual · Puzzle · 2D