Since everything in the game is balanced for pvp, my idea is to hit two birds by incorporate stealth in to something else I wish improved, hunting. I don't like how hunting in this game is basically just cheesing the AI and abusing the combat with buffers, BUT maybe I just hate how it breaks immersion by the obvious mechanical abuse. What if stealth helped mask the cheese. The following points aren't necessarily made to complement each other, only to give ideas.
- Animals have passive perception (some find you easier than others by smell or sight) which is translated in to a wider aggro range. Increasing stealth shrinks aggro range of all animals. Some remain hard to avoid even at high stealth, but some have the aggro range completely gone. Some birds could even be caught before they fly.
- Aggro range remains the same but each animal has a threshold to perception that if exceeded, the animal won't aggro you. Example: Bats have 50 PER. With 51+ stealth the bat never aggro you. [unless provoked of course]
- Remove Aggro range and introduce a much wider ring called the Detect Range that works on a distance based gradient. When entered by a hearthling, a constant battle of hearthling stealth and animal perception occurs. As you get closer to the animal, it has easier time finding and attacking you. Animals also now have multiple levels of detection. 0=unaware| 1=alarmed| 2=searching(you might wanna run) |3=aggroed. Each time hearthling fails the check, the animal advances a level of detection. Other factors that might affect the equation. Time of day vs nocturnal/day animals. Crawling raises stealth, running lowers it. Terrain vision.
- With ranged combat, animals have a chance of not being able to detect the source of the damage and runs away in fear. Leaving a trail to possibly repeat the process until animal dies. OR each hit could put the animal in to a different detection level so particularly dull animals could have multiple arrows in before acting.
- The first source of damage to an unaware animal does critical damage modified by stealth.