A Game About One Couple :

https://itch.io/jam/gmtk-2019/rate/461694

I made ETTIN BFFs in which a two-headed giant picks flowers in a garden.  The main thing is that it is intended to be played by two players on only one controller/keyboard.

https://itch.io/jam/gmtk-2019/rate/461262

Seems to have been a good selection of puzzle games. Here's my team's food-themed puzzler Ka-Bob (name might catch your fancy XD ) https://bitdecaygames.itch.io/ka-bob

We're not the most needy for rates, but we certainly would love more! Feedback is also highly prized ❤️

https://itch.io/jam/gmtk-2019/rate/463463

Merlin's mess. A game about helping Merlin hunt for that one special item in a sea of junk.

Our game is a Puzzle Shooter "One by One". The rule is simple: only one enemy can be hurt at a time. The story behind the game is to destroy all the negative aspects of the hero's life and achieve a "Happy life"

Only one screen, only one damageable enemy, only one bullet to snipe your enemy, only one hp. 6 types of enemies and 5  levels to complete

Any comments and suggestions are appreciated, have fun! https://itch.io/jam/gmtk-2019/rate/461596

My idea was to have one switch that changes everything in the game. It began as a very chaotic concept but I feel like it ended as a nice (short) puzzle game.

https://itch.io/jam/gmtk-2019/rate/461762

Hey, thanks for making a thread like this! Here's my game about a spaceship with only one bullet left :P Gonna check out yours first ;) 
https://itch.io/jam/gmtk-2019/rate/461508

This was a great game jam! Happy to show off my work, it is a 1 input puzzle game! Android and PC support!! Check it out here! 

https://itch.io/jam/gmtk-2019/rate/460669

Here is my game about killing groups of enemies with one bullet you can control for anyone who wants to try: https://itch.io/jam/gmtk-2019/rate/46242

My personal best on it is 25,000, good luck beating that.

https://becher.itch.io/light-them-up
It's an Action Top Down game with only one color on only one platform.

Have fun! Try to get the highest score ;)

A horror adventure game where you control a robot through one text command at a time.  - https://olinkalex.itch.io/dead-command

Hi Bob. Just try your game. The atmosphere is pretty good. But i think you should add some more obstacles or enemies to make it more difficult, and reduce the time a platform disappear is a good idea. Here is my game: https://itch.io/jam/gmtk-2019/rate/463557

This is my first game jam and it was pretty fun to make it. How to play is in description.

Here's my first every game jam game :) more of an experiment than a game. Thanks for offering to check out everyone's games.

https://petpumpkin.itch.io/the-resting-place

If you say so, ours is a short, rhythm based boss fight in which you only have one button between crouching, movement, and jumping.
We put a lot of work and stress into it.

https://bryce-bucher.itch.io/1boss1battle1button

I guess since your thread title commanded, I'll obey. It was going to be a progression of simple and similar one-button mechanics, but I only got one stage done. So it ended up being just rowing through a body of water while trying not to get killed by the fish.

https://itch.io/jam/gmtk-2019/rate/460395

I will go through the posts as well! We need more ratings! :D

Here is ours:

Once upon a time in a world ruled by ONES…

After a nightly power failure in the prison everyone has broken out… except you! You overslept! Even most jailers left the prison. Only you and ONE jailer “Peter Tryhard” are left. Luckily he lost his flashlight and you found it. Now you have to get out of the prison without getting catched by Peter. His eyes are used to the dark, so you can blind him with his flashlight. Take care and don’t use too much power of your flashlight, because you have ONLY ONE battery left! Good Luck!

https://itch.io/jam/gmtk-2019/rate/461557

Hey! Here is our game, I made the music and sound design! 

https://itch.io/jam/gmtk-2019/rate/463135

I really like your platformer!

check out my "single-stick" shooter! I would appreciate any feedback you could add! :)

https://itch.io/jam/gmtk-2019/rate/462146

https://itch.io/jam/gmtk-2019/rate/462012  here it is