Starter-Kit-3D-Platformer VS ICVR

Whatever platform/engine(s) you end up trying, you both might enjoy looking through the game assets that Kenney shares with the world for free:

* https://kenney.nl/assets

* https://kenney.nl/starter-kits

The asset range includes 2D & 3D and in a variety of graphical fidelity/style from 1-bit to low-poly--including sets which are designed to work together.

The "Starter Kits" are a more recent development which aim to get you something working out of the box with Godot which you can then customise: https://github.com/KenneyNL/Starter-Kit-3D-Platformer

I'm pretty sure you'll find both cars and zombies to start with... :)

(Another person who shares high-quality free assets worth checking out is Kay Lousberg: https://kaylousberg.itch.io )

You are welcome to use the framework I made. It's called ICVR - Island Collective Virtual Reality. It is a Unity-based framework and has all the modules for creating a simple running, jumping, throwing type mechanics. It is designed for VR and PC and works on standalone devices (Quest 2 type). As a demo, i made a tenpin bowling simulator that is discoverable on the interwebs.

https://github.com/willguest/ICVR

If you pair it with another (also FOSS) repo, you can self-host it on the Internet Computer. That means cutting out fees from hosting providers and has security built in. This is not a requirement, but it's quite snazzy.

I am fairly busy person, but would be happy to give pointers. The setup in Unity is also automated and, to get a simple scene going, no coding is necessary. There are a bunch of assets to get started there too. If, as you say, you are already a dev, this wouldn't be much of a learning curve for you.