= Technical Evaluation Matrix

Use the following matrix to evaluate engines for suitability.  Edit the Wiki source and fill-in the appropriate cell with notes about each.

|| ||= Unreal Engine =||= Godot =||= Minetest =||=UNIGINE ||
||= Voxel Engine||Very, very rich support, supports blocky and smooth.  Professional version is going to be required, which costs $299 USD.  Possibly more advanced than Transvoxel||Built-in, unsure what version it's using but it appears to be in active development (based on Transvoxel by Eric Lengyel)|| || ||
||= Dev Performance||Extremely slow, feels like a Rube Goldberg machine||Superb, almost instantaneous|| || ||
||= Component Extensibility|| || || || ||
||= Help and Support|| || || || ||
||= Community||Huge, tons of people in the Discord, very active|| || || ||
||= Documentation|| || || || ||
||= Tutorials & Examples|| || || ||[https://unigine.com/learning-unigine/video-tutorials#video-tutorials Company provided tutorials]||
||= Terrain Paging|| ||Not much is listed for this: [https://docs.godotengine.org/en/stable/tutorials/optimization/optimizing_3d_performance.html#large-worlds Official write up on large worlds] [https://godotforums.org/discussion/20841/how-big-can-you-make-an-open-world-game-in-godot Forum post about this. Looks like it does not have key features built into it].  That said, it looks like Zylann's Voxel engine supports LOD-based terrain, which is promising|| ||[https://www.youtube.com/watch?v=vYov5jwsAD0 Paid version supports unlimited size and real time terrain deformation along with high detail]||
||= Dynamic Lighting||Plenty of options and flexibility||Claims there are only a max of 8 light sources an object can receive at a time, but this might be ok after the new Godot 4.0 lightmapper, it claims to do well and bake more than that|| || ||
||= Network Synchronisation||Built-in both Unreal Engine and Voxel Plugin has its own built-in support||Nothing Voxel-specific, but everything Godot is node-based, and Godot allows you to add networking logic at the node level, both UDP and TCP|| || ||
||= GPU Technology Used||Most advanced, including Vulkan, [https://developer.nvidia.com/unrealengine Only game engine co-developed by nVidia] does not work well with AMD cards ||OpenGL 2.1, Vulkan is coming|| || ||
||= Materials / Texture Support|| || || || ||
||= Fluid Dynamics|| || || || ||
||= HLSI || ||GD-Script, Lua-like||Lua (for modding)||[https://en.wikipedia.org/wiki/Unigine UnigineScript (scripting)]||
||= C++ Support||Built-in||Requires use of GD-Native|| ||Support for C++||
||= Platforms (Linux, Mac, Windows)|| || || ||[https://en.wikipedia.org/wiki/Unigine#Platforms Windows and Linux]||
||= Cost / Licensing||Royalty-free until first $1M, then 5% on all gross revenues||Free||LGPL||[https://unigine.com/get-unigine/ Games under $100K free, but does not support large worlds after that it cost $150 a month]||

== Description
 '''Component Extensibility''':: 
    How easy is it to tweak / modify behaviour of existing components in-case we need them to do more?

 '''Help and Support'''::
    What's the official product and technical support like? response time, cost, etc.

 '''Community'''::
    What's the user community of the product like? forums, response-time, skill-level, enthusiasm, activity, etc.

 '''HLSI'''::
    ''High Level Scripting Interface'', does the engine provide a way to write scripts for game logic? and in particular, does this 
    interact well with their WYSIWYG editor?

 '''Fluid Dynamics'''::
    Does the engine provide any fluid dynamics out of the box? this includes everything necessary to model water flow and propagation in an open-world environment.  Minecraft totally side-steps this and employs a completely borked version of fluid dynamics (total cop-out).  Dwarf Fortress does not cop-out, but fluid dynamics in that game can bring the CPU to its knees.  Ideally we want to farm these computations out to the GPU.

= Notable Games
* [https://www.dualuniverse.game Dual Universe]