Ludum Dare 31 — December 5th-8th, 2014 — Theme: Entire Game on One Screen

Back to Browse Entries


by LostCodeStudios - Jam Entry

gn0Portal is an experimental combination of Portal and Pong. We modeled the aesthetic on our own development tools, the Ubuntu desktop and Bash terminal. Development was very hectic and we made quite a few mistakes, so the final result is very janky, but we're proud of it anyway! We hope you enjoy it too.


Work the main menu by typing a command and hitting Enter. Notable commands are "play 1", "play 2", and "play 3" to access the 3 different levels of the game.

Move your paddle up and down with W and S. Shoot portals by aiming with the mouse and pressing the Left/Right mouse buttons.

Win by breaking your opponent's back wall.

Downloads and Links




asobitech says ...
Dec 9, 2014 @ 2:31pm

interesting concept.

L33tGamer2001 says ...
Dec 10, 2014 @ 3:01am

really leet

Dec 10, 2014 @ 3:12am

Pretty fun! I like the concept.

zakchaos says ...
Dec 10, 2014 @ 3:16am

really cool concept, might be more fun if portal is a little bigger?

p1x3lruckus says ...
Dec 10, 2014 @ 3:19am

Overall very fun, and a good use of the theme. But gameplay was damaged as soon as you realise you can win 100% of the time by shooting a portal behind the other players paddle. But I guess that's easily fixed if you where to ever remake this.

TriSquare says ...
Dec 10, 2014 @ 3:20am

I actually kind of enjoyed this game. smooth movements natural curving all of it was great, and i like the Ubuntu themed terminal, nice touch.

rjhelms says ...
Dec 10, 2014 @ 3:24am

Really cool concept, well executed.

I had a crash trying to play a level after I had already beaten one - but they all works if I restarted the game.

phaze112 says ...
Dec 10, 2014 @ 3:38am

This is an interesting concept, though it's a bit too easy to cheat a win. Maybe it'd do better with some dead spots, so that you can't play a portal right behind the other paddle, or over their portals.

Wampus says ...
Dec 10, 2014 @ 3:49am

The 'breaking the game' effect was an interesting addition, given the time constraints of LD.

Ekilibr says ...
Dec 10, 2014 @ 3:50am

Nice tribute to Mr. Pong who unfortunately left us few days ago.
A (bad) coincidence, though ? :)

Still, the association of the two gameplays works, nice entry!

dalbinblue says ...
Dec 10, 2014 @ 4:07am

I liked the idea of the game. Super hard to beat the AI in the game (lost many times), but pretty cool to use the portals.

I did find a bug in that at least on Windows the game crashes when you try to start another level after ending a previous one. Starting the game back up works to play the next level, so it isn't that big of a deal though.

ZNCatlaw says ...
Dec 10, 2014 @ 4:08am

Wow that meta! The terminal interface, the code scrolling by in the back-ground, and the victory screen are really clever. The music is stunning!

I want to know how many people start trying to run other commands, and I'm kind of curiuos as to how you created the terminal in the first place.

The gameplay itself is kind of confusing and feels unresponsive (maybe that's just my machine?). Regardless, this is a great entry.

Dec 10, 2014 @ 4:14am

@ZnCatlaw, Monospace font and just coded it up using simple arrays and command parsing. @Wampus it was just an afterthought, but we thought that breaking the theme is breaking the game, so what better way to that than actually just breaking the screen!

BtheDestroyer says ...
Dec 10, 2014 @ 4:16am

Pretty neat. Managed to crash it somehow though...

trykondev says ...
Dec 10, 2014 @ 4:30am

What a great idea, this is a super interesting experiment! Some nice visual effects too

Dec 10, 2014 @ 4:31am

great concept! love it!

tcarter says ...
Dec 10, 2014 @ 4:44am

Very innovative! I loved the ending animation.

radmars says ...
Dec 10, 2014 @ 4:56am

Awesome concept! Bit too easy to lock the ball behind the paddle but pretty fun nonetheless. Would love to see some multiplayer for this. Did you make the music yourself though? If not you should probably opt out of the category.

playvue says ...
Dec 10, 2014 @ 5:19am

Nice approach! Love the crazy update on pong, which you'd think couldn't be done in any 'new' ways by now. Love it! =)

Dec 10, 2014 @ 3:54pm

@radmars We didn't make the music. I've opted out, thanks for the suggestion. I don't know how everyone else is using the opt out feature so I just assumed people were using it for categories they didn't address.

billrizer says ...
Dec 14, 2014 @ 6:26pm

Neat little game :)

Portal creation process can be a little confusing at times tho

You must sign in to comment.

TEAMS: Teams entering the Jam should pick a single representative to submit your game, or create a team specific account you can share. We currently do not support Team Voting, but sharing an account and together playing and rating games is acceptable.

NOT LOGGED IN?: If you get a message about not being logged in, even though you are, it’s because your web browser cached the non-logged in page. You can fix this by either refreshing your cache or clearing your cache. CTRL+F5 in many browsers. Chrome is a bit more work. Press F12 to enable Developer Mode, then you can right click on the refresh button and select “Empty Cache and Hard Reload”. This option is unavailable if you are not in Developer Mode.

PORTS: Ports to other platforms can be done after the deadline. That said, the sooner you finish your port, the sooner people can play your game, improving your chances of placing in the final results. For best results, provide a Web version of your game, or a Windows version with no dependencies. Also be sure to rate about 20 games to improve your visibility.

MY GAME DOESN’T SHOW UP: If you can’t find your game, it’s usually because the URL to your downloads are missing ‘http://‘. Fix your URLs ( and you will show up. Alternatively, if you just posted it, wait a minute. The cache may not have refreshed yet.

MY GAME CRASHES, IS UNBEATABLE, OR I MADE A TYPO: We allow you to fix crash or win condition bugs after the deadline (in a sense, like “porting” to support more players). We also allow “typo” bugs. I.e. A true that should have been a false, a word that should have been a different word, very tiny changes that you would have caught if you had more sleep. We leave this open to interpretation, but generally speaking your game should be identical to the game you submitted. No new features, just things you messed up last minute. Typos.

[cache: storing page]