What is the simplest engine / constructor / engine for a 3D game not a game?

Question

3D

We need a very simple (but preferably not quite pixel 240*320 for CGA/EGA monitors :) ) engine/constructor to create pseudo 3D games (don't mix it up, not pseudo 3D games). You need to create a walker for a couple of rooms with a corridor or a 3D labyrinth with very simple simple objects inside (cubes, balls), jpeg pictures. No characters, enemies / frags / bots, no weapons, no interaction with objects is needed.
Some of these characteristics are desirable, but not necessary:
​​1. Easy to learn without the need for real programming and additional mastering of complex 3D programs at the first stage.
2. If there is programming, then preferably python or LUA.
3. The minimum size of the final file (*.exe + data / maps separately or all in one exe up to 100 mb).
4. Legally free at least for non-commercial use, open source is better.

Answer 1

Unreal Engine has by default just a simple rpg template. So it will be enough for you to create a new project there, specify the type of 3d shooter and throw in a simple map.
If you need some kind of interactive, it can also be done there without programming based on the connection of logical nodes.

Answer 2

Strange, it should work with a slash, for example, on a page/user/name

<a href="/about">перейдет на /about</a>
<a href="about">перейдет на /user/name/about</a>

Answer 3

// Generating URLs...
$url = route('profile');

Generating URLs To Named Routes
https://laravel.com/docs/5.3/routing#named-routes