Welcome to GeNa the Rolls Royce of spawning systems for Unity 3D that helps you to create stunning environments fast!!

Created by procedural specialist Adam Goodrich, and supported by an active community, GeNa works on meshes and terrains, and creates both structured and unstructured natural and human environments.

GeNa gives you the flexibility to go fully procedural or fully manual or somewhere in between, and helps you to bring your vision to life by quickly and naturally placing grass, trees, prefabs or even structures made up of groups of prefabs such as villages.

GeNa automatically optimizes the prefabs it spawns by fixing their batching and lighting, and adding light probes as needed. The result is better lighting, improved frame rates, and reduced bake times. In my test I reduced bake time by eight hours and this feature alone is an absolute lifesaver!

Key Benefits:
– Simple and easy to use;
– Nicer natural environments;
– Massive time savings;
– Better frame rates;
– Better lighting.

Key Features:
– Fast intuitive setup;
– Works with terrains or meshes;
– Works with single or multiple tiles;
– Automated optimization system;
– Automated light probe placement;
– Spawns grasses, trees or prefabs
– Spawns individual items;
– Spawns complex structures;
– Spawns locally or across entire scenes;
– Composable spawner and sub spawners;
– Design time or runtime spawning;
– Precision placement modification;
– Savable as prefabs for re-use;
– Amazing gravity simulation;
– Rock ledge and rock wall building;
– Cool fence building system;
– Multiple spawn algorithms.

Multiple Spawn Algorithms:
– Organic;
– Clustered;
– Last location;
– Every location;
– Local spawns;
– Global spawns;
– Image and noise based masking;
– Gravity!

Even before it’s launch GeNa is being used by several AAA game studios, and the feedback consistently ranges from somewhere between “Genius!” and “Makes level design fun again.”




GeNa is an incredibly powerful spawning system that’ll take your game from bare bones to full blown AAA environment in the matter of minutes! Yes it’s really that powerful and has been used in a ton of indie games as of to this date, alongside the ever popular Gaia terrain system, these two combined is everything you need to make a stunning game! Powerful enough for a single indie dev., expansive enough for a team of indies or pros! I’ve personally play with both GeNa and Gaia and I can vouch they are incredible systems, really expanding on what I could accomplish as a solo indie dev as well as showing off the incredible power of the Unity engine when utilized correctly.


One of the shinning features of GeNa is that you can either manually create your scene with the spawners, which each spawner has a slew of settings to enable you to spawn your models just the way you wan to OR you can go fully procedural and the system will handle spawning everything for you. As someone who really likes to control the creation process of levels, having both can be really hand because some things you may not want to do by hand while others you’ll want to nit pick each and every placement.


When it comes to optimization and lighting, GeNa is ready to handle it all! GeNa automatically optimizes the prefabs it spawns by fixing their batching and lighting, and adding light probes as needed. The result is better lighting, improved frame rates, and reduced bake times.



Event though most of the examples for the usage of GeNa are exterior setups or terrain setups, the system can also handle interior setups, spawning, etc., something to really note as it’s not exactly shown that much from the developer but can be a powerful addition if you have no terrains in your game.



This review only scratches the surface of what GeNa has to offer but overall GeNa is an incredibly useful system that no developer should miss out on, if you do, you are truly missing one of the prime assets the Asset Store has to offer!


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