Save for the final act.

There are 2 saving options in the archive, before the great drinking party in Kaer Morhen and after it [Island of Mists]. Before meeting Ciri.

All witcher orders, additional tasks, etc. completed 100 percent. DLC "Blood and Wine", "Hearts of Stone" completed. The entire map is open. Geralt - level 55, all skills [Including Professor Moreau's mutations].

A complete set of grandmaster armor from all schools. Everything is beautifully painted, loaded with glyphs from Ophir merchants, etc. Half is in Geralt’s backpack, and the other half is at the dacha in Corvo Bianco.

Romance with Triss. The fate of further characters depends entirely on you. All possible characters, except the main ones, will come to the Battle of Kaer Morhen. This is... Keira Metz, Zoltan, Roche with Bianka, Mousefur, Hjalmar with his sidekicks Folan and Vigi, as well as Summer.

Everything was completed without cheats or any modifications (The Witcher 3, edition of the year).