Welcome to Terrairium

Welcome to the .NET Terrarium project! Terrarium was created by members of the .NET Framework team in the .NET Framework 1.0 timeframe and was used initially as an internal test application. At conferences and via online chats, Terrarium provided a great way for developers to learn about the new .NET programming model and languages as they developed creatures and introduced them into a peer-to-peer ecosystem.

Game Overview

In Terrarium, you can create herbivores, carnivores, or plants and then introduce them into a peer-to-peer, networked ecosystem where they complete for survival. Terrarium demonstrates some of the features of the .NET Framework, including Windows Forms integration with DirectX®; XML Web services; support for peer-to-peer networking; support for multiple programming languages; the capability to update smart client, or Windows-based, applications via a remote Web server; and the evidence-based and code access security infrastructure.

How it Works

The game can run in two different modes:

In both modes, you can develop your own creatures or you can watch as other developers’ creatures battle it out for survival by running Terrarium as a standalone application or as a screensaver.

When creating a creature, you have control over everything from genetic traits (eyesight, speed, defensive power, attacking power, etc.) to behavior (the algorithms for locating prey, moving, attacking, etc.) to reproduction (how often a creature will give birth and what “genetic information,” if any, will be passed on to its offspring). Upon completing the development process, the code is compiled into an assembly (dynamically linked library, or DLL) that can be loaded into the local ecosystem slice, viewable through the Terrarium console. When a creature is initially introduced in Ecosystem Mode, ten instances of it are scattered throughout the local ecosystem. No more instances of that creature may be introduced by that user or any other on the network until the creature has died off completely. By contrast, if running in Terrarium Mode, an infinite number of instances of a given creature may be entered into the environment.

Once the creature is loaded into Terrarium, it acts on the instructions supplied by its code. Each creature is granted between 2 and 5 milliseconds (depending on the speed of the machine) to act before it is destroyed. This prevents any one creature from hogging the processor and halting the game.

Within each peer in the network, a blue “teleporter” ball rolls randomly about. If the user is running with active peers logged in (either in Ecosystem Mode or using a private channel in Terrarium Mode), whenever this blue ball rolls over a creature, that creature is transported to a randomly selected peer machine.

Support or Contact

For information about the Terrairium project and it’s future please check out the GitHub site or contact @bsimser directly.