December 16th-19th 2011 :: Theme: Alone

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Rover's Spirit

by Robmaister - 48 Hour Compo Entry

You are a Mars rover, and have recently lost contact with Earth. You stumble across a martian prison and must explore the area.

Controls: arrow keys to move, Z to interact.

This game will run on pretty much any hardware (minimum OpenGL 1.5). On my netbook, only non-power-of-two textures weren't being displayed correctly, but it still played fine.

If you keep your system updated, you'll have .NET 4 (Windows 7 has it by default), but just in case you get an error about not having .NET, you can download it here:

Just tested this on another machine, you'll need to have OpenAL installed too. If the game doesn't do anything at the beginning, this is your issue, download and install OpenAL here:

You can still play this game on Linux or OS X, you just need to download Mono separately and run "mono /path/to/entry/RoversSpirit.exe"

Downloads and Links




mezoom says ...
Dec 19, 2011 @ 5:31am

crashes at start for me (Windows XP .NET 4 is up to date)

Robmaister says ...
Dec 19, 2011 @ 5:38am

Just tried this on another system of mine, if you don't have OpenAL it'll either crash on start or just not show up at all. I added an OpenAL link to the description, I should have included an OpenAL installer with the download...

Robmaister says ...
Dec 19, 2011 @ 5:52am

actually never mind, that's another issue. Right now there's another issue where QuickFont (the font rendering library I'm using) is throwing an AccessViolationException, but only when it's not being debugged. It seems to only happen on some machines, I'm going to investigate this a bit more.

Robmaister says ...
Dec 19, 2011 @ 6:07am

Somehow it compiled differently (63.5kb instead of 60.0kb) on the machine that crashed, and it seems to be working on that system now. I'm going to blame it all on wizardry, reuploading the windows version now, let me know if it still crashes.

bzizizi says ...
Dec 19, 2011 @ 7:50am

Couldn't unpack the game. Unexpected end of archive...

Robmaister says ...
Dec 19, 2011 @ 8:39am

I just tried redownloading it on both my Arch and Windows partitions and unzipping on Windows with both explorer and 7zip, no issues.

Try redownloading?

spiral says ...
Dec 19, 2011 @ 10:25am

Worked for me... (win7 64bit)

...easy to get lost on mars tho! eventually found my way

Dietrich Epp says ...
Dec 20, 2011 @ 9:40am

Nice! It feels cohesive and complete.

whilefun says ...
Dec 20, 2011 @ 7:00pm

Won't work for me either, windows 7, 64 bit. The error details say:

Problem signature:
Problem Event Name: APPCRASH
Application Name: RoversSpirit.exe
Application Version:
Application Timestamp: 4eeecc9b
Fault Module Name: KERNELBASE.dll
Fault Module Version: 6.1.7601.17651
Fault Module Timestamp: 4e211319
Exception Code: e0434352
Exception Offset: 0000b9bc
OS Version: 6.1.7601.
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

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olav_st says ...
Dec 20, 2011 @ 7:16pm

Worked for me on linux using mono.
Good game, but i got lost..

Robmaister says ...
Dec 20, 2011 @ 8:16pm


It looks like my game is being put on the DEP list, I've had this happen to me before with completely random programs. My laptop would refuse to play Half-Life 1 because of it. Make sure you've unblocked the exe (right click -> properties -> unblock) and make sure your account has access to all the files in the folder first though. The instructions in the link to add a DEP exception is: Control Panel -> System -> Advanced System settings -> Advanced tab -> Performance Settings -> Data Execution Prevention tab.

Also if you have 2 versions of the .NET framework, that might be the issue, remove the older one.

whilefun says ...
Dec 20, 2011 @ 10:40pm

Huh, i tried all that and when I tried to add an exception, I got an error that says

"This program must run with data exception protection (DEP) enabled. You cannot turn off DEP for this program."

Well that sucks. :\

Robmaister says ...
Dec 20, 2011 @ 11:03pm

Apparently that specific error code just means NullReferenceException, make sure you've got some graphics card drivers - it could just not be finding opengl32.dll, and make sure you've downloaded OpenAL.

I don't know if this would be the issue, but if you've got Visual Studio on your system, try the suggestion here:

Actually, if you've got VS, try compiling from source.

whilefun says ...
Dec 21, 2011 @ 12:42pm

oh snap, that might be it. I've got VS on my system. I'll give that a try once I get back to my compy :)

Robmaister says ...
Dec 21, 2011 @ 9:35pm

also, I just gave this a try on my friend's mac compiling from MonoDevelop last night, apparently it had trouble rendering fonts that weren't of size 36, so I'll create an alternate download for those who experience issues with the regular download.

whilefun says ...
Dec 22, 2011 @ 1:00am

Man, I am glad I was persistent. I tried it on my other laptop also on windows 7 but no VS and it worked.

Awesome job! Great sounds.

JoeCool says ...
Dec 23, 2011 @ 3:04pm

Did not work for me Window 7 64Bit :(

Robmaister says ...
Dec 23, 2011 @ 11:20pm

Any specific errors? Did you make sure to install OpenAL? If you have Visual Studio, have you tried compiling from source?

kumber says ...
Dec 26, 2011 @ 9:11pm

I just left Mars :) Nice game!

Stargoat says ...
Dec 29, 2011 @ 4:21am

Download link not working for me.

Robmaister says ...
Dec 30, 2011 @ 2:39am

Is blocked where you're trying to download from? That's the only reason I can think of for the download not working. Both the binary and the source are hosted on github.

caranha says ...
Jan 3, 2012 @ 2:00am

Nice! A bit straightforward for a puzzle game, but you made me interested in the story of the martian prison. A few more notes certainly wouldn't hurt :-)

Veralos says ...
Jan 7, 2012 @ 8:08am

I don't like that you need to install OpenAl, but it was simple to install and the game worked fine afterwards, so it's not a major problem.

A short and simple, yet enjoyable, game. The graphics are okay, but not great. I liked the sounds a lot, though. The "Alone" theme is also used fairly well.

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