GrimCo
Hero
You can view it trough that lens also. You can do only what is explicitly stated in the rules. That's the way bureaucracy works. Problem is, there are bunch of very rules light systems that have very little rules. So, what is or isn't allowed is mostly up to table to decide.You're conflating attempting to do things with things being allowed if they aren't explicitly forbidden by RAW. The former is fine. The latter doesn't exist in RPGs. At least not any that I've ever seen.
You can tell the DM that you want to attempt to build a machine gun, even if the Top Secret rules don't allow it(don't know if they do). You can't just say that building one is allowed just because the rules don't forbid it.
Attempts can be made, but the allowance is up to the DM to admit whatever it is you are trying into the game. It's not assumed to be allowed unless the DM says no.
As an example, if I sit down at @Crimson Longinus's D&D table, I can't assume that my PC will be allowed to build the Starship Enterprise. I can ask him if he will allow it, but the default assumption isn't that it's allowed in his game just because the rules don't specifically say no.
Common sense and table courtesy applies. If you say you are building machine gun in game set in ancient Greek, that wouldn't be against rules ( if game in question doesn't have rules about it), but it would be considered poor form to do it. Same with building Enterprise in non Star Trek game. Although, some tables are cool with things with that.
Point is, when game doesn't have rules, it's up to table to make them once situation arises that is not covered by existing rules.


