April 20th-23rd 2012 :: 10 Year Anniversary! :: Theme: Tiny World

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Spaceship Planet Merge

by Hazard - 48 Hour Compo Entry

One day a voice spoke to the aliens:
"To fulfill your destiny you have to travel to the center of the Galaxy.
To do so, merge all your planets together, and afterwards, merge the large planet with the sun.
Your entire solar system shall be your spaceship."
And so they did...

Use explosive plants to move planets and to leave gravity.

Keyboard Controls:
Arrows for walking
Up to jump
X to pick up things
M to show the map
Tab to switch alien

Gamepad Controls:
Left stick to move
A to jump
B to pick things up
Y to show the map
Shoulder to switch alien

You can run CheckPrerequisites.exe to check whether all required Prerequisites are installed already. Run it if the game won't start or causes an error.


- Microsoft .Net Framework 4 Client Profile ( http://www.microsoft.com/download/en/details.aspx?id=24872 )
- Microsoft XNA 4 Runtime ( http://www.microsoft.com/download/en/details.aspx?id=20914 )

Development Tools:

Visual Studio 2010 and XNA 4
Music created with cgMusic ( http://codeminion.com/blogs/maciek/2008/05/cgmusic-computers-create-music/ )

Unfinished stuff:
- Aliens don't have any animations
- Forgot to add the planet-merge sound. Duh.
- Planned to add ropes and other things, but didn't have the time.

Downloads and Links




VDOgamez says ...
Apr 23, 2012 @ 5:39pm

This is really cool, although I'm not entirely sure what's happening. I can't tell how the orbits are being modeled, so I can't really tell where to detonate the plants to affect the orbit the way I want. Also it took me a while to realize you weren't supposed to detonate the plants themselves, because then you run out of fruit, nearly. It's a very nice concept and is not the kind of gameplay I was expecting. Also, how does the combining the planets work? The world seems to get a bunch of grey material where the asteroid hits, are the planets dynamic or did I just get lucky to have them appear that way? One thing that I think would make this better would be to make navigating to other planets necessary, because when I started I assumed I needed to do that, and orbited my guys to the other two bodies, only to find nothing really there, and the game ended up just being about blowing up charges on the prograde and retrograde ends of the planet to make it hit stuff. Despite this, I enjoyed the gameplay, as well as the music and especially the graphical style.

uprightpath says ...
Apr 23, 2012 @ 5:49pm

Ba-da-boom towards the center of the universe.

Interesting idea about the collision stuff. Nice effect that you can blow yourself out of the solar system.

Hazard says ...
Apr 23, 2012 @ 6:03pm

VDOgamez, thanks a lot for your feedback!
Yes, my plan was to make it necessary to go to other planets before merging them, but those plans fell victim to the time limit. This leaves the explosive plants as the only relevant gameplay mechanic, which is quite one-sided, sadly.
When planets merge, the surface of the planet with the lower mass gets "peeled off" and inserted into the larger planet. Due to that you acrually see the materials and the surface structure of both planets on the newly formed one.
The orbits are always circular, to make it more simple. Explosions on the sun-ward side of the planet widen the orbit, explosions on the far side narrow it. Explosions on the orbital path can speed up or slow the orbit speed, but the speed has no influence on the stable orbit here. A slow orbit speed won't cause the planet to fall into the sun, in this method. Not realistic, but i wanted to make planet movements easy to predict and control.
I'm glad you still enjoyed it. :)

lasseastrup says ...
Apr 23, 2012 @ 7:24pm

Fun little game - had trouble figuring out how to blow stuff up at first. Fun game mechanic

AlwaysGeeky says ...
Apr 23, 2012 @ 8:34pm

blow it up!

Verrazano says ...
Apr 23, 2012 @ 11:10pm

hmm not to self be careful when playing with explosives, this was an explosive idea I think teaching the player how to change the orbit of the planet more clearly would have been better. But yet again I have found another great idea. I merged the two green planets then blew up two bombs which flung me into my grove of bomb plants that I had put all in the same place I then flew into outer space dying. my two remaining aliens collided with the sun, fantastic.

Izzimach says ...
Apr 24, 2012 @ 1:24am

Liked the mechanic of smashing together planets. Can you jump to other planets? I tried a few times but couldn't get it to work.

Hazard says ...
Apr 24, 2012 @ 1:50am

Yes, you can get to other planets. Two explosivle plants on the same spot are usually enough to get you out of the gravity field of your planet. In space you still have a bit of control over the character, allowing you to navigate to other planets. A direct shot is possible too, but difficult to aim. There isn't really any purpose of going to other planets, though... sadly. Except the fun of doing it, of course. :)

netmute says ...
Apr 24, 2012 @ 11:35am

Couldn't rate because I'm on a Mac. Sorry :(

Hazard says ...
Apr 24, 2012 @ 12:05pm

I will provide a video playthrough later, for Linux and Mac users. It's definately more fun to blow your own aliens into space, but a video is better than nothing, i guess. :)

Gremlin says ...
Apr 24, 2012 @ 2:07pm

I think the running around on the planet speeds are a little slow, but I did manage to blow all of the little guys into space.

Arkazon says ...
Apr 24, 2012 @ 7:35pm

Pretty cool idea, I finally managed to win after catapulting one of my guys into the sun and another into space! Agree with VDOgamez in that the orbit modelling seemed a little odd, some explosions seemed not to effect it at all whereas another explosion with the same number of plants managed to completely change it.

icefallgames says ...
Apr 24, 2012 @ 7:36pm

Interesting concept... I think I was about to win (I think I need to smash all planets together then send it to the sun?), but the game hangs for me whenever I switch away to another window then back.

devwil says ...
Apr 25, 2012 @ 12:27am

***I'm posting this on all non-browser games I bring up in an attempt to encourage folks to make browser games next time around. Do not take it personally.***

When hundreds of people make non-browser games, that means that, to play all of the entries, I would need to download hundreds of games to my computer. I typically use OS X, so Windows-only entries are particularly inconvenient.

Please consider making a browser game next time.

Hazard says ...
Apr 25, 2012 @ 12:39am

devwil, no, i won't. Not everyone likes to make browser games, you know? You are too lazy to download games? Well then just don't.

omaha says ...
Apr 25, 2012 @ 2:33am

not having any luck playing xna games on my mac or linux+wine.

robcozzens says ...
Apr 25, 2012 @ 8:54am

I would have tried it if it had a web or osx version.

wzl says ...
Apr 25, 2012 @ 11:06am

Thanks for your comment ;)

Pretty neat entry you did, although it is hard to comprehend why and how the planet moves and will behave from explosions. The idea itself is interesting though. Good job.

PS: There's someone else from hannover -> TcStyle. We're not alone \o

Tifu says ...
Apr 25, 2012 @ 2:40pm

Unique idea! Very fun :D

Hazard says ...
Apr 25, 2012 @ 3:00pm

Thanks for the feedback. :)

I've uploaded a playthrough video for those who can't play the game on their OS:

Bombing the aliens through space yourself is more fun, though. ;)

tcstyle says ...
Apr 25, 2012 @ 6:49pm

This is an awesome idea!
Besides of that I like the graphics of plants and aliens and the music. Some movement animation would have been great.
Glad to see more Ludum Dare output from our city. :)

the8donut says ...
Apr 25, 2012 @ 9:53pm

I LOVE the music, and the little monsters are soo cute!

jwolf says ...
Apr 27, 2012 @ 12:01am

Neat entry! You may want to clump the keyboard controls a bit closer together, though.

caranha says ...
Apr 27, 2012 @ 6:06pm

Great game, Awesome audio! I really like the idea of piling up the fruits to move the planets forwards and backwards. The aliens were really cute!

Maybe you could add a little bit of an interactive intro story, like the aliens finding out about the bombing plant, crashing in one planet/asteroid, and then having the idea of crashing everything together, that might make the whole story more appealing :-)

Thanks for the awesome game!

Hazard says ...
Apr 28, 2012 @ 11:53am

Thanks for the suggestions! I might do a post-compo version that incorporates some of them.
Don't give me too much credit on the Music, though. Most of it is randomly generated with cgMusic. I just generated a lot with different parameters to find the most fitting melodies and then rearranged and tuned them to match the kind of style i was aiming for.

Jezzamon says ...
Apr 29, 2012 @ 1:17am

ooh... the graphics look cool.

It's a shame I can't run it on my mac. :C

Raptor85 says ...
Apr 30, 2012 @ 9:22pm

can't test as XNA4 crashes in WINE

Fireblend says ...
May 1, 2012 @ 4:11pm

Cool concept! Although it needs lots of coordination and I think it's too easy to lose by blowing up the wrong part of the planet. A tutorial might have come in handy :P

someone says ...
May 1, 2012 @ 5:47pm

Cant test the game in Linux, but thanks for the video.

May 6, 2012 @ 10:31am

Nice idea! But in need of some polish.

Terra says ...
May 13, 2012 @ 4:22am

Pretty cool! Took me a while to figure out what I was supposed to do (I didn't realize that if you pick the plants first then you can re-harvest them later and get more bombs), but when I did figure it out I thought is was pretty clever :)

Cake&Code says ...
May 13, 2012 @ 6:43pm

Hehe, it's a fun little game with very interesting mechanics! It was a lot fun to blow yourself into space and landing on little planetoids was exciting, though usually counter productive :)

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