Happy Engine

Table of Contents

Happy Engine is a lewd swippy-swappy puzzle game where you can upload your own images.


(Adult) Content?

Not applicable.

Hours of Gameplay?

Modding Support?
Upload your own photos.

Patch Available?
Download as DLC.


I originally published a review for Happy Engine on January 10th, 2020. I have updated that review, to reflect my thoughts on this game as of September, 2020.


A below-average swippy-swappy game with a few interesting features — in Happy Engine, you are able to upload your own images, and download other users’ works (via Steam workshop). After completing a puzzle, you can “touch” the image (causing it to jiggle) or crudely draw on it. There are thirty puzzles to solve (provided the DLC is installed.) You can drag-n’-drop images into a designated folder in Happy Engine‘s install directory.


There is no story (and I’m not making one up.)


There is no titlescreen — it’s straight to swip-swappin’! From the “gearbox” icon, you can adjust audio, display and language preferences. The user-interface is serviceable, though I would have liked it to be more opaque. The game is bombarded with purple visual effects, which I think should be toggleable.

The Goods

There are thirty images to see, but none show nudity.


I do recommend this game — Happy Engine is an immense value for the money. However, it goes without saying that this game will only appeal to you if you enjoy swippy-swappy puzzles. The artwork is very stock, and the main selling point is the ability to upload your own.

Questions, requests or comments?