My Europa Universalis IV Strength Score next steps
Europa Universalis IV
You’ve already done big regional/unification runs and religious/expansion play (Mare Nostrum, Basileus, Grand Duchy), so these three step up the challenge by combining difficult large‑scale cultural/religious unifications (The Third Way and The First Toungoo Empire) and a demanding Timurid/Persian formation run (Shahanshah) that build on your experience with domination, managing institutions and tricky conversions.
The Third Way
The First Toungoo Empire