Minecraft ps store bought 1 time always play?

I bought minecraft in the ps store now the subscription has expired

Can I still play minecraft (solo) without online, without friends or do I have to buy ps + to be able to play it again

To the best of my knowledge, you can continue to play solo. But don't know if that has changed.

Since you bought it yourself, you can still play it without PS + (single player).

But why don't you just try it out

Once you've bought it, you can play the game without any restrictions. If you want to play it online with friends you need PS +. If you got the game as a ps + game (free games of month at PS +) then PS + is also necessary otherwise you can't play it

As? That costs 18.49 euro in the ps store if I bought it with ps + credit, can I always play it just not online if there's no more ps + right?

Correct.

I meant it for the future: If you mean free games from PS +, then you need Ps Plus. Otherwise, if you have Playstation credit (no Playstation plus credit) then it is permanently playable