Is HOI4’s HARDEST Achievement Still Possible in 2026?
Today we’re attempting Siberian Tiger in Hearts of Iron 4 and testing whether it’s still possible in 2026 after all the recent updates and balance changes.
Starting as Tannu Tuva, the goal is to break free and form Siberia — one of the most difficult and awkward achievements in HOI4. With new patches changing strategies and timings, I wanted to see if the old methods still work… or if this achievement has become even harder.
Let’s find out.
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HEARTS OF IRON 4