This year’s theme was “Waves”, and I found myself in a team where I didn’t know a single person – which is always challenging, but also fun! The development went nearly without any hitches and I’m really content with our result:

In the game, you are a bat flying through a cave looking for its bat pups so you can go hunting. The cave is dark and the pups are tiny, so you use your echolocation to see and hope the pups answer. You steer with the gamepad – but to use the echolocation, you have to whistle into a microphone! (Like the title suggests, this is definitely the latest in bat simulation technology.)

Here’s a video of our presentation after the GGJ (starts at 0:29):

And a small trailer video Emily and Caroline made:

The game and its source code is available at its Global Game Jam entry page.

Before I talk a little more about the development, here’s the team:

• Caroline Clark (@lineyjane): Programming
• Emily Claudet: Game Design, Sound Design
• Frederik Lindemann: Level Design, Game Design
• Miranda Tung: 2D Art/3D Art
• Tobias Wehrum: Team Lead, Lead Programming

We also used some assets:

• Dark Forest font by dcoxy – Greg Medina
• Universal Sound FX by Imphenzia AB
• 3D Particles by Unluck Software

Okay, on to the development! This time (and very atypical for me), the concept was rather simple. A single player game with no really hard development challenges – well, that leaves more room for polish, and sounds just right for 48 hours!

This was also one of the few times where the game design didn’t change much over the course of the weekend. Everything just worked. In the end, we actually finished the game with all the features we wanted! We even removed some features we already implemented because they made the game less accessible and weren’t as much fun as we had imagined: Dizzyness when the bat crashed into a wall, and not being able to call out to children when there’s a wall in the way. We also wanted to add monsters that follow sound, but in the end the game turned out to be plenty fun without the added complications, so we decided not to go that route.

The microphone implementation was incredibly easy, more so because this isn’t my first microphone controlled game. I just had to sample the input volume and detects peaks.

First I wanted to do the echolocation waves via shaders, but that that would’ve taken some time. Then I remembered something I learnt about in a Pluralsight video tutorial just a few weeks ago: Light Cookies, which allow you to put shadow masks on Unity3D lights. The final echolocation waves are just multiple spotlights with a circular light cookie mask shining from above, and the angle gets progressively bigger. That way it “runs” across obstacles and scales walls and stalagmites instead of just looking like it’s two-dimensional shape projected from above. The effect is a bit hard to describe, but you can see it quite often in the videos linked above.

I am really happy with our result! Thanks a lot to my team for being the best team – and to the location organizers and the Global Game Jam team who made it possible for us to jam without worrying too much about such mundane things as work space or food!

Six druids have come together to perform
the yearly Super Important Ritual.
But unbeknownst to them, two traitors
have infiltrated their ranks!

Complete the rituals, but watch out for
those which fail – and who participated!

Watch your fellow players!
Identify the traitors!
(Potentially) Save the world!

A deceptive platforming game for four druids
and two traitors with XBox360 Controllers.

GGJ Page with Windows build

Credits:

Starship Command Center Pro

Deep in space, nobody hears you scream
when the trial version of your OS runs out.

Not that screaming would do much.
Instead, you and your two friends now need to
figure out what the randomized buttons of the
free version of your system do.

Together, operate thrusters, cannons,
shields and a mining magnet, collect
gold and buy a proper license!

A cooperative and confusing space adventure
for three players with gamepads.

Download for Windows
GGJ page

Credits:

• Brian Davis: Idea, Game Design, Music and Sound Design
• Mikko Lepistö: Art
• Tobias Müller: Programming
• Tobias Wehrum: Lead Programming

With sounds assets by Ricky Situ, CST 201 KaWilson and Jim Rogers.

The theme is used twice in our game – once in the game mechanic with players having to talk to each other what do to next because they need to work together, and secondly in the story: The trial version of our control system has ended and the result is a chaotic and unknown button layout, what do we do now?

We even satisfied a diversifier (sort of an achievements for the developers) this time: Noise Generator, “The mechanic of the game is based on players having to stay in constant communication with each other.”

Fun fact: Originally we wanted to do the controls Spaceteam-like with custom controls on multiple smartphones – buttons, sliders, rotatable knobs. It took us over a day to get it to connect and run smoothly between Android and PC, only to find out that using controls on a touch screen while looking at another monitor felt awful and (apart from buttons) was nearly unusable. So after that day of work, around 5 in the morning, I spent 30 minutes to program replacement gamepad controls. It worked perfectly and felt good.

You can find a download at the game’s GGJ page.

Credits:
– Game Design: Thomas Bedenk, Norbert Haacks
– Programming: Tobias Wehrum, Benjamin Schug, Richard Wepner, Martin Heller
– Art & Animation: Kirill Krysov
– Music & Sound: Lesley Dean

Blood Trial (Alpha Release)

You are participating in an
ancient ritual to appease the blood god.

Rip out other warriors hearts and sacrifice them
at the top of the temple while they’re still beating!

Keep the favor of the thirsty god and he’ll reward you generously!

Super Smash Bros. meets Mortal Kombat in
this fighting game for up to 4 players.

Download the current version for Windows

Global Game Jam entry

I’ll make a proper post about the jam and the game later (with video and all that), but I thought that it couldn’t hurt to have a link on my blog in the meantime.

Credits

Programming:

• Tobias Wehrum
• Benjamin Schug
• Dario Seyb

Art:

• Michael Kessler
• Tobias Breitenbach
• Kirill Krysov

Game Design, Producing and being all around awesome:

• Norbert Haacks

Super Snake Wheel

“We can’t stop here! This is bat country!”
Well, Mr. Snake might have been a bit drunk when he and his companion Mr. Gecko ignored all the warnings and set out to their adventure. Being one of the few snakes who can form a tire out of himself, he’s now rolling down the hill while Mr. Gecko defends him from birds, barely keeping his balance! Take control of this duo of odd heroes in this quirky adventure for one casual and one hardcore player!

Play the updated version online at Kongregate!

Check out the original GGJ build!

And of course credit where credit is due, and these amazing guys deserve a lot:

• Game Design: Matthias Niebergall
• Art: Kirill Krysov
• Programming: Dominik Hübner and myself
• Music taken from the wonderful Kevin MacLeod
• A big thanks to all the people organizing the jam, globally and locally here in Berlin. You’ve done a great job!

By the way, we even satisfied a diversifier (an achievement for the developers) this year: “Collaborative Casual/Hardcore (Two players: one casual, one hardcore): Collaborative play for two, but one player has more to do than the other (or the difficulty level is different between them).” I am sure you will agree after you’ve tried both the casual Mr. Snake and the slightly more hardcore Mr. Gecko: The former just has to jump and duck, while the later has to balance on the snake, jump at the right times and use the mouse to shoot at birds!

Lessons learned

Even though this is not my first jam, it seems that every single one has some valuable lessons to teach. These are mine this time:

• Even though it’s an a very small timeframe, make a rough project plan with milestones so you won’t lose focus.
• Every milestone should be playable (player interaction and a goal), especially the first one – which should ideally be ready when you go to sleep the first time. It does wonders to your motivation!
• Programmers, make a task list. It keeps you focused.
• You cannot say if something is fun until you can test it. Halfway through the project I felt like giving up because nothing seemed to be coming together, and 12 hours later we had this amazingly fun prototype! So even if it seems like the game won’t be any good, at least implement the first playable prototype.
• If your code is based on a pixel oriented framework like Flashpunk, don’t mix in vector based stuff like MovieClips. It just leads to a whole load of implementation overhead.
• If you want to pull an all-nighter, at least sleep the first night. Otherwise you might fall asleep the second night which will surely lead to you missing the deadline.

This year the GGJ was certainly not easy and at times tedious and exhausting, but the result totally makes up for that. I daresay that it is one of my best prototypes so far! I am very happy that I have participated, and I’d like to thank everybody who made the weekend as amazing as it was!

The Game

Our final game is about obtaining as many bubbles as you can! You can do this by just peacefully collecting them, as there are many, but soon there won’t be – and then you have to dash at other players and hit them so they drop their bubbles and you (and everyone else, hurry!) can collect them. An interesting (and deceptive) mechanic is that you can go off-screen so that you don’t show, and while hidden, wander, so you deceive players about your real position – and suddenly jump out and get them! Furthermore, you can teleport a few times to the other part of the screen, and doing this while being hidden outside of the screen is a good method to sneak up on the others! (If you have read the post before: There are no alliances anymore, and there is only one kind of ball to collect.)

So without further ado, here is it: http://www.globalgamejam.org/2010/zinozini

I suggest you download the version in the “Installation Notes” below, because there are a few bugs fixed – but well, we won’t take down our 48h-state, it is also highly playable. :)

Your graphics card needs to support Shader 3.0 to play this game, and it is optimized to be played with Xbox 360 controllers. If you don’t have them, download it anyway, it even makes fun without them!

The game is written in C#, with XNA as framework.

Oh, and by the way, here is a Zino Zini wallpaper:

The Team

And here’s our team again, for those of you who skipped the other way-too-lengthy post:

Lars Kokemohr – Programming
Me, Tobias Wehrum – Programming
Daniel Bock – Game Design and Music/Sound
Norbert Haacks – Game Design
Additionally featuring: Phillip Gronek – Q&A Tester, Fun, Red Bull

What will be added soon

• A score screen!
• A test for Shader 2.0 (yes, 2.0. We want to make it run on 2.0, so stay tuned if you don’t support 3.0!)

Actually, we wanted to add a bunch of other stuff, for example but not limited to: A Splash Start Screen showing our splendid logo (om.nomnom games), a start menu, a credits page, preferences (sound/music on/off), a different mode without time limit, and and and… but time ran out, and since it is playable in the current state, we will only add the things named above for sure.

PS: If you ask where there key, the monkey or the donkey is, well… that is a riddle, wrapped in a mystery, inside an enigma, and therefore hard to find. (There is none. It got lost somewhere along the way of the development process, and afterwards we felt the game is too much fun to try to press a constraint in there. Earlier the balls collecting the bubbles should’ve become monkeys, but that wouldn’t go with the fine abstract look it has now.)

In a nutshell: The Global Game Jam is a world wide event where participants meet up in their local locations from 5pm (local time) Friday to 5pm Sunday to make games together. You meet up, brainstorm, present ideas and then teams are formed – mostly out of total strangers. It is interesting and intriguing: You have never seen the people you work with before, and now you are working with them under extreme time pressure, to rapidly prototype a new game. Skills are tested to their limit, friendships are formed, creativity is skyrocketing and sleep is a valid but completly ignorable option.

Our location was at the A MAZE. Interact Festival. The fee was only 20€, and alone all the food and beverages we got were well worth it! A big thanks to Marek Plichta, Jaro Gabski and A MAZE for organizing it! You did a terrific job!

Warming up…

So, I will give you a report how it was for me! When I first entered the room it was taking place, I knew absolutly nobody there. Most of the people were talking german, only a few english. First item on the timetable: We should give really short presentations about ourselves. And wow, there were some great things people were doing! At least five people were from the Games Academy (where I would love to be enlisted too, but I don’t have enough money). And there I was, only having done two presentable projects in total, and without that much experience… Well, I did my presentation and it went fairly well.

After watching the Keynote for this game jam…

…we finally got the Theme Of This Year: Deception. Our local constraints were to add one of these elements as well: A key, a monkey or a donkey. Then we sat down in groups of two, developing a basic game idea we can present to the others and convince them to take part in our team – or tell others that you like their idea and you want to make it with them! I didn’t get anything complete done, though I had some vague concepts that I liked, but that wasn’t so bad because the others ideas were so interesting that I would’ve ditched my idea anyway, I guess! :D

Meet the Team!

After a bit of shifting from one person to another, this fine team assembled:

From the left to the right:

• Daniel Bock: Game Designer and Musican (and Games Academy student)
• Norbert Haacks: Game Designer (and Games Academy student #2)
• Me, Tobias Wehrum (not a Games Academy student)
• Lars Kokemohr: Graphics Programmer (another Games Academy student. Dang, I’m getting jealous!)
• Not shown here: Phillip Gronek who joined later and was mostly occupied with Q&A testing, fun and donating Red Bull to us. He would make a great producer.

(By the way, this fancy light installation was part of the A MAZE. Interact where we actually were sort of an exhibit. It was funny to see people strolling from the exhibition over to us, sometimes retreating at the sight of so many nerds awesome people, sometimes actually looking around in amazement (pun intended) and asking questions. I remember a particular girl stealing my time most charmingly for over 10 minutes.)

The Idea

So, there we were! Norberts idea was as follows: The game consists of four players: Red, Green, Blue and Yellow. Around the field were little bubbles in two colors. Two players are assigned to collect balls of a specific color, but the two remaining got the task to support each one of the others, known to no one but each of them. So why is Blue collecting the same bubbles as you? Does he want to help you getting them? Or is he playing for Yellow, and wants to detain you from getting them? To get the bubbles of another player, you can DAAAASH! at them and they drop some of them, open to everyone to collect! So much for the initial idea. Don’t fall in love too much with it though, because it kind of changed along the way.

Some Impressions

I would love to give you a day-to-day description, but all days blur into one, so I will just give you some random impressions. :)

At first I thought that it would be hard to divide the work between us two programmers, but it turned out it wasn’t. Most of the graphical stuff I was totally clueless, but code design and game logic are totally my thing, so Lars, our Shader God, was mostly doing the first thing (and how well he did!), while I was doing the latter. Did I mention that we were using XNA and 3d, by the way? I worked about 4 hours XNA before, and neverever did any 3d stuff.

It was very interesting to have game designers in your team. 48 hours are not much, and while programming the game is essential, the result should also be FUN and BALANCED (yikes!) and stuff like that! Having people in the team who always think about this and plan what to do next is so great! Also watching them smile when they see what you just did compensates hours of sleep shortage.

Concerning sleep shortage: Before the Game Jam, I slept for about 10 hours. This was followed by being 21 hours awake (counting since I was awake, not when the game jam started), 4 1/2 hours sleep, 17 1/2 hours working again, 1 hour trying to sleep, and 5 hours up and working frantically to get things done before deadline. So of the 48 hours, I spent about 5 1/2 hours sleeping and 42 1/2 awake. I would’ve never thought I, the late riser in person, could do this! (And afterwards, I slept 24 hours straight. :D )

Yeah, we’re finished!

So after a lot of designing, making music, eating snacks, programming and not sleeping later, we actually got down to have our game finished in time! Not as far was we wanted to, but that was only because we aimed high.

Read about it in the next post!

Some afterthoughts

So let me share some more-or-less-random afterthoughts:

• My team was nothing short of awesome. Everyone was really dedicated to finish with a magnificent game, and I think we were the team in Berlin with the fewest sleep. And that’s not even talking about their skills…
• I learned that I don’t have to fear 3d programming. Actually, it is fun! :)
• The people I met were great! New friendships, here I come! :D
• My english isn’t too bad. Spontaneously switching to english is no problem at all, only sometimes I miss some vocabulary.
• Multivitamin juice is like caffeine, only tasty and without the drawbacks.
• It is amazing what you can do in 48 hours. Rapid prototyping is really nice.

The weekend was definitly worth its time! And now, for the game – click on the image above or here to find out where to play it!