Can You support Vanilla 2.0+ without Space Age?

As spoilage is a feature of Space Age, you will need the expansion, there really isn't much we can do about that. But it works in regular Freeplay as long as you have Space Age installed (it can be disabled, but you need it installed).

How can I start regular Freeplay ...
Can I start 1 planet vanilla game when space age is active as a mod ?

How can I start regular Freeplay ?
Can I start 1 planet vanilla game when space age is active as a mod ?

You have to have space age DLC installed, then disable the space age mod in the Mods menu (you can leave elevated rails and/or quality enabled, if you want to) then you can start a regular Freeplay via: Single Player -> New Game -> Freeplay.

I tried it with SpaceAge mod enable works like a charm.
But without SpaceAge mod it fails start time compilation.
Factorio version 2.0.7

IMHO Your mod is trying to use SpaceAge related content

Error below ...

Failed to load mods: Error in assignID: item with name 'tungsten-plate' does not exist.

Source: advanced-scrap-metal-recycle (recipe).

Mods to be disabled:

everything-spoilage (1.3.3)

Oh, I forgot about that part. I just ran it to test it and I still had the random mode on, which works fine. We can fix that.