Mention restrictive conditions at restart.
When the game restarts, any restrictive conditions that have no visual clue should be mentioned.
As an example: today I restarted my game and the first command failed with reason:
"You do not have enough room to use any missile weapons.".
Finally I found out that I was in a pit, but the game should have mentioned this.
Being stuck in a web is also rather restrictive and without visual clue, although in that case there are often other webs around.
This is related to issue 1916.