The biggest problem with EU IV is that there are no peace time events so to say, and once you reach a certain size then the game becomes far too easy. I propose a solution, to tie revolt risk to empire size in a series of tiers.
Tier I Single Province State - ( +3) High Tolerance of True Faith, (-50%) Reduced Accepted Culture Threshold, (-60%) High Provincial Stability, (-50%) Extremely Cheap Cost to Core, (+30) Diplomatic Bonus to other states (non-threatening actor), etc
Tier II Small State - 2 to 5 provinces - (+2) High Tolerance of True Faith, (-25%) Lower reduced accepted culture threshold, (-25%) High Provincial Stability, (-25%) Cost to Conquer, (+10) Diplamtic Bonus to other states ( small but wary).
Tier III Regional Power 6-15 provinces - No Faith Bonuses, Baseline Accepted Culture Threshold Cost, Baseline Provincial Stability, Baseline Cost to Core, Baseline Diplomatic Relations etc
Tier IV Regional Great Power 15-25 - Heretic and Heathen Acceptence (-1) , (+25%) Increased accepted culture threshold, (+25%) Provincial Stability, (+25%) Cost to Conquer, (-25) Diplomatic Relations, (Revolt Risk +1 across the board)
Tier V Regional Hegemon 26-40 Heretic and Heathen Acceptance (-2), (+50%) Increased accepted culture cost, (+50% Provincial Stability, +50% Cost to Conquer, (-50) Diplomatic Penalty, (Revolt Risk 3+ across the Board)
Higher tiers would have more penalties that would go up in scale. While this would obviously hurt blobbing out, especially early - I would also tie these tiers to Admin Tech Level. The more advanced of a state you the easier it would be to maintain a large empire ( As it happened Historically). E.g. Once you reach admin tech level 10, for instance Tier Penalties would become lower. At tech Level 10, a nation in tier IV would have Tier III penalties.
What do you think?
Tier I Single Province State - ( +3) High Tolerance of True Faith, (-50%) Reduced Accepted Culture Threshold, (-60%) High Provincial Stability, (-50%) Extremely Cheap Cost to Core, (+30) Diplomatic Bonus to other states (non-threatening actor), etc
Tier II Small State - 2 to 5 provinces - (+2) High Tolerance of True Faith, (-25%) Lower reduced accepted culture threshold, (-25%) High Provincial Stability, (-25%) Cost to Conquer, (+10) Diplamtic Bonus to other states ( small but wary).
Tier III Regional Power 6-15 provinces - No Faith Bonuses, Baseline Accepted Culture Threshold Cost, Baseline Provincial Stability, Baseline Cost to Core, Baseline Diplomatic Relations etc
Tier IV Regional Great Power 15-25 - Heretic and Heathen Acceptence (-1) , (+25%) Increased accepted culture threshold, (+25%) Provincial Stability, (+25%) Cost to Conquer, (-25) Diplomatic Relations, (Revolt Risk +1 across the board)
Tier V Regional Hegemon 26-40 Heretic and Heathen Acceptance (-2), (+50%) Increased accepted culture cost, (+50% Provincial Stability, +50% Cost to Conquer, (-50) Diplomatic Penalty, (Revolt Risk 3+ across the Board)
Higher tiers would have more penalties that would go up in scale. While this would obviously hurt blobbing out, especially early - I would also tie these tiers to Admin Tech Level. The more advanced of a state you the easier it would be to maintain a large empire ( As it happened Historically). E.g. Once you reach admin tech level 10, for instance Tier Penalties would become lower. At tech Level 10, a nation in tier IV would have Tier III penalties.
What do you think?