In GraviNULL, the player will be put in a Zero Gravity situation with no means to move around besides using a modified gravity gun with a "grapple" function.

The grapple function can attach to the numerous mines floating about the map and fling the player around, the player must kill the enemies by punting the mines at enemies, normally the mines give off a minor electrical shock, but when they are punted they become supercharged for a while allowing them to cause lethal damage.

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ᵐᵉᵉᵗ ᵃᵐʸ GN_FORUM by IZaNaGI Meet Amy

The GraviNULL team presents as promised: An update containing the re-balanced hz_laserblender map seen in the previous trailer which was left out of the 1.0 release. As well as some other changes!

Don't know GraviNULL yet?

Check out this beta trailer:

Why should I get excited over this 1 map?

Maybe this video will help!


Or for those of you who prefer simpler eye candy:

gn_laserblender, your worst nightmare

gn_laserblender, your worst nightmare gn_laserblender, your worst nightmare

How to play?

Want to know the controls before playing?
Just push some of these buttons:

GraviNULL Controls

Or for something more advanced, check out this.

Download the mod!

You only need one of these files, take a pick!

Want to host a dedicated server?

While you download:

Please consider this, when there's no one playing, servers will eventually switch to a hazard/race map(if there's one in the rotation) and will stick to hazard/race only. Should you find no one in the servers, be aware that these are playable just fine on your own, so hop on the servers, other people will be looking at the server list to see if there's people playing and they'll join eventually.

This will get servers filled up while you can still have fun and play while you wait for them to be filled.

What's new?

A quick copy paste from the readme.txt:
- Changed:
* Map change system:
# Now includes race maps in selection;
# Selects hz/rc maps at random;
# Will now rotate only hz/rc maps while server is empty;

* Map: gn_nexus:
# Spawns in the lower/upper area's now face up/down correctly;

* Red mine charge time(towards end of its life only);
* Sped up overal health regeneration;
* OnGrappled and OnGrappleReleased outputs for all entities that can be grappled;
* "Target" selection of absorbing mines and selecting a target for the seeking mine now both select based on both range and distance from crosshair instead of just range;
* trigger_push, now has the option to have a "Set Speed", this is activated by changing the new speedControlScale variable, the higher it is, the faster the player will start moving in the set direction and speed, at a high setting acts as an airbrake(don't see too high or player will have a hard time getting out);
* Increased mine launch kickback strength;
* Grapple "stretch" system, now grants slightly less speed when grappling shot mines, more strength can be given in a real stretch situation where it's most needed;

- Removed:
* Health regeneration penalty when getting hit by mines that deal less than 25 damage;

Looking for forums?

You can find those here.

Official servers hosted by:

An update, to you, the watchers mostly

An update, to you, the watchers mostly

5 years ago News 4 comments

I have a small question and some other things to mention, so read on!

GraviNULL b1.0 public beta released!

GraviNULL b1.0 public beta released!

5 years ago News 17 comments

The GraviNULL Team is proud to present the first open beta release of GraviNULL, featuring 1 new gamemode and 3 new maps total since the alpha. Do join...

GraviNULL: First Beta release Friday!

GraviNULL: First Beta release Friday!

5 years ago News 23 comments

Friday is the day GraviNULL will be re-zapping to your screens! To soften the wait, enjoy our new trailer, created by one of the GraviNULL players.

GraviNULL: New release plans and footage

GraviNULL: New release plans and footage

5 years ago News 16 comments

The beta release is getting closer, though the plans have changed once again, there's also some new gameplay footage.

GraviNULL is a multiplayer first person Zero Gravity mod for Source.
GraviNULL b1.1 Client Patch Installer

GraviNULL b1.1 Client Patch Installer

5 years ago Patch 0 comments

If you have 1.0 installed use this to patch your 1.0 to 1.1, simply run it and play!

GraviNULL b1.1 Client Full Installer

GraviNULL b1.1 Client Full Installer

5 years ago Full Version 3 comments

The installer version of GraviNULL Open Beta: b1.1 Simply run and click next a couple of times to install it.

GraviNULL b1.1 Client Full Zipped

GraviNULL b1.1 Client Full Zipped

5 years ago Full Version 0 comments

The zipped version of GraviNULL Open Beta: b1.1 Simply extract into Steam/steamapps/sourcemods. Remember to restart Steam!

GraviNULL b1.1 Client Patch Zipped

GraviNULL b1.1 Client Patch Zipped

5 years ago Patch 0 comments

Use this to patch your 1.0 to 1.1, simply extract in Steam/steamapps/sourcemods.

GraviNULL b1.1 Server files

GraviNULL b1.1 Server files

5 years ago Server 1 comment

The server files required to host a dedicated server for GraviNULL. Read more for instructions if you need them.

GraviNULL Wallpaper

GraviNULL Wallpaper

5 years ago Wallpapers 4 comments

Here comes a GraviNULL Wallpaper for everybody !!!

Post comment Comments  (0 - 10 of 177)
SDKD Sep 22 2012 says:

This mod deserves alot more attention

+4 votes     reply to comment
chrisc44890 Dec 10 2011 says:

voted for this mod because of originality, strategy, and the fact that i LOVE this mod and think it deserves more players

+5 votes     reply to comment
Cookiemann Dec 3 2011 says:

I voted for you because of your originality!

Keep of making something different, innovative and NEW!

+4 votes     reply to comment
nosfer4tu Dec 2 2011 says:

This mod deserves my vote.

+3 votes     reply to comment
richardfps Sep 6 2011 says:

i don't get it

+1 vote     reply to comment
asif_ridwan Aug 3 2011 says:


+3 votes     reply to comment
GlitchedSystem Apr 3 2011 says:

Server is available with 8 player slots. - Dfyyyy

+5 votes     reply to comment
Boomerbuster Mar 27 2011 says:

if nobody makes a server on this game in the next week i am going to slap the developer in the ear with a hotdog so hard they can hear the hotdog screaming for help.

+9 votes     reply to comment
DuckSauce Creator
DuckSauce Mar 28 2011 replied:

You shouldn't abuse hotdogs like that, you evil bastard.

+11 votes   reply to comment
juhoy Mar 27 2011 says:

im sad this is so amazing yet theres no servers to play with anybody online :(

+5 votes     reply to comment
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Release Date
Released 2010
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Last Update
2 years ago
564 members