Open-Sourcing Inventory Pro, Quest System Pro + more!


We’re Going Open-source!

5 years ago, we published our very first tool on the Unity Asset Store: Inventory Pro.

Almost immediately, the tool was off to a great start, and so was our little two-man company operated out of Denmark and The Netherlands.

Over the next year and a half, we served thousands of game developers, and quickly developed additional tools as requested by our growing community; including a quest, achievements, and conversation-tree system, a line-of-sight and hearing system, and a Sci-Fi UI for those aspiring to use Inventory Pro for their next space game.

Now, 5 years later, we’re at a point where we’re spending a lot more resources supporting these tools than we gain from them. It has been like this for many months, and it’s starting to severely hinder us from focusing on our most popular tools: Odin and Rucksack.

We’ve continuously supported all our tools because we want to ensure you can continue using them for your projects - even if you bought them years ago. But now that that’s not an option for us anymore, we know exactly what we have to do!

We don’t want to simply deprecate our tools. We want them to flourish in the hands of the community, we want them to grow, and we want you to have full access to all of them.

So therefore, as of today, we’re officially open-sourcing the following tools:

- Inventory Pro (link to Github page)
- Quest System Pro (link to Github page)
- LOS Pro (link to Github page)
- Sci-Fi UI Design (link to Github page)
- Scene Cleaner Pro (Github page coming soon)

All of these tools are now open-sourced and free under the MIT license.

This also means that as of today, you can’t buy these tools anymore from Unity's Asset Store.
If you’ve bought any of them within the past 30 days, we’re happy to offer a full refund. Just send an email to 
[email protected] with your invoice number.

We’ll continue maintaining the Discord channels for each of these tools, so that the community has a place to exchange ideas for improvements to the tools, answer each other’s questions etc.

What’s next for Devdog?

A whole lot, and we’ll have a lot more to announce soon! ;)

We’ll continue with a laser-sharp focus on our two primary tools; Odin Inspector & Serializer and Rucksack, our multi-and-singleplayer inventory system.

Moving forward, we don’t intend to develop new tools on our own apart from potential plugins for Odin and Rucksack.

What does this mean for my license?

Since Inventory Pro, Quest System Pro, LOS Pro, and Sci-Fi UI Design are now all officially open-sourced, you can use them in whichever way you want, as long as you follow the MIT License.


Thanks for the amazing support over the years. For us at Devdog, this is the beginning of Devdog 2.0, and we're excited to show you everything we've got coming up over the next 12 months.

Keep making awesome games,
Joris, Sune, Bjarke, Tor, and Mikkel of Devdog Publishing

Rucksack - Ultimate Inventory System

Rucksack is the most flexible and extensible single and multiplayer inventory solution with UNet support that enables you to easily setup player inventories, NPC inventories, banks, premium shops and much more!

Odin - Inspector and Serializer

Odin puts your Unity workflow on steroids, making it easy to build powerful user-friendly editors for you and your entire team. 

With an effortless integration that deploys perfectly into pre-existing workflows, Odin allows you to serialize anything and enjoy Unity with 80+ new inspector attributes, no boilerplate code and so much more! 

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About us

We're a developer and publisher of best-in-class tools and asset for the Unity game engine. We develop and sell but also publish products like Odin for talented developers and artists around the world.