Sandpit is a sandbox mod for Half-Life.

Features include:

  • Spawn menus for Half-Life and Opposing Force monsters, models and sprites
  • Pose menu for changing skins, bodies, world and mouth position position of monsters, models and sprites
  • Automatic mounting of Opposing Force, Counter-Strike and Day of Defeat content


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10 years ago the first version of Sandpit was released - it wasn't much - just the spawn menu and a few monsters from Half-Life, all based off some VGUI tutorials by Richard Zad at The Wavelength. For the next few years Sandpit got lots of updates with lots of features but by 2010 other projects (like Sandbot) had started to take up more time.

Sandpit's improved posing capabilities

In 2013 full-time work rolled around and not a lot of programming got done for fun anymore, but the updates to Half-Life and the release of the updated SDK re-ignited some interest and Sandpit started getting some more attention again. In the background, work on Basis got moved to new Half-Life SDK.

Sandpit's spawn menu

In 2015 a new job meant more desire to finally get Sandpit v4 to happen. Until then nothing had really been done beyond patching a code-base that was very obviously messy and in need of some love. Basis was tidied up and released publicly in 2015 and in 2016 and a new Sandpit was forked off Basis to take advantage of the fixes and structure that it brought. Work continued slowly for the next little while, but by the second half of 2018 it was still far from completion. The looming 10 year anniversary of Sandpit meant a lot of work got done in September, October and November of 2018 to get the most important features done in time.

Sandpit's spawn menu

In spite of best efforts, there was still an annoying bug in v4.0 that couldn't be reliably reproduced during testing and so a day later v4.0.1 was released to fix it.

There's still lots more planned for Sandpit (follow Sandpit to stay informed) - here's to another 10 years!

P.S. there are still two days left to vote for Mod DB's Mod of the Year - vote for Sandpit at Moddb.com

Transmission 15929

Transmission 15929

Feature 7 comments

A new episode of Podcast 17 featuring Stargate: Legacy, Half-Life 2: Dawn, Valve's recent interview on GTTV, brief discussions about SHIFT and Perfect...

RSS Files
Sandpit v4.1

Sandpit v4.1

Full Version 46 comments

Sandpit v4.1 adds a new Sprite Menu, some Opposing Force entities, entity scaling and more.

SandPit 4.0.1 (EXE)

SandPit 4.0.1 (EXE)

Full Version 12 comments

SandPit 4.0.1 installer version. Automatically detecting Steam HL1's path.

Sandpit v4.0.1 (ZIP)

Sandpit v4.0.1 (ZIP)

Full Version 46 comments

Sandpit v4.0.1 fixes stability issue in the previous release.

Sandpit v4.0 (ZIP)

Sandpit v4.0 (ZIP)

Full Version 19 comments

Sandpit v4.0 is a complete re-write of Sandpit on the latest version on the Half-Life SDK.

SandPit 3.7.1 (EXE)

SandPit 3.7.1 (EXE)

Full Version 40 comments

SandPit 3.7.1 installer version. Automatically detecting Steam HL1's path.

Sandpit v3.7.1 (ZIP)

Sandpit v3.7.1 (ZIP)

Full Version 32 comments

Fixed crash on map change (thanks SylvesterBarry@ModDB). Extract the .zip to steamapps\common\Half-Life\ and restart Steam to play.

Comments  (0 - 10 of 1,104)
Guest
Guest

How do I activate the mod?

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tschumann Creator
tschumann

Put the contents of the .zip in steamapps/common/Half-Life and restart Steam.

Reply Good karma+1 vote
Guest
Guest

for people who wonder why the creator can only make the mod for steam: when you put the file in half-life it comes separately that appears in your library without the, without steam despite having put the mod it will not appear

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tschumann Creator
tschumann

I don't want to have to maintain a WON version as well - some features will only work in the updated Steam engine.

Reply Good karma+1 vote
Guest
Guest

garry's mod goldsource edition

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Guest
Guest

why is there "gamedll_osx" if there is no dylib?
i am really just asking for mac support,
can you plz add that soon.

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tschumann Creator
tschumann

I won't be adding Mac support - I don't have a Mac on which I can develop it.

Reply Good karma+1 vote
Guest
Guest

Will entities like medkits and batteries be spawnable in the future?

Also will the option to remove props be an option? (Unless its already there and I don't know how to remove them. :\ )

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tschumann Creator
tschumann

Hm, I hadn't considered that (entity-wise - if the models aren't spawnable I was going to do that at least).

impulse 203 should remove an entity I believe but I haven't tested that.

Reply Good karma+1 vote
qm
qm

any chance you can open source this so we can add features to it ourselves as well? or is it already open source and i'm just blind

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tschumann Creator
tschumann

qm It's not open source and I don't have any current plans to open source it - I'm still working on it - I just haven't had a lot of free time lately.

Reply Good karma+2 votes
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Highest Rated (7 agree) 10/10

This game was QUITE a fun game, I love it, what else is there to say?

Dec 26 2010 by LandyRS

Twitter

Latest tweets from @teamsandpit

Sandpit Nightfire v0.1 released: Moddb.com #nightfire #goldsource #modding #sandpitmod

Sep 16 2020

Posing sprites #halflife #goldsource #modding #sandpitmod T.co

Oct 6 2019

Playing around in Sandpit #halflife #goldsource #modding #sandpitmod T.co

Feb 24 2019

New Sprite Menu for next version of Sandpit #halflife #goldsource #modding T.co

Feb 1 2019

Expanding pose menu for next version of Sandpit #halflife #goldsource #modding T.co

Jan 9 2019

Sandpit v4.0.1 has been released: Moddb.com #halflife #goldsource #modding #hotfix T.co

Dec 8 2018

Sandpit v4.0 has been released: Moddb.com #halflife #goldsource #modding T.co

Dec 8 2018

Next version of Sandpit is nearly ready #halflife #goldsource #modding T.co

Nov 24 2018

Progress continues on Sandpit's new pose menu #halflife #goldsource #modding T.co

May 6 2018

Sandbot v0.4.2 released (.zip: Moddb.com, src: Github.com) - fixed singleplayer and bot_… T.co

Apr 21 2018

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