Is it possible to play the game for 1 to 3 with the same party? And if how?

After each game (after the ending scenes) you can make another save. This has to be loaded at startup on the next game. You can actually use any savegame from an earlier game, but you get a nice bunch of XP on each ending, so it's recommended to use those.

Possible is

1->2
2->3
1->3
3-> ??? (sadly a cancelled sequel :.-( )

"Backtransfering" (3-> 2) is not possible.

uhm then its time for a franchise playtrough i got 4 weeks of vacation, only i hope i can get trough 1 tough since i notice my warriors are terrible at the start while my archers kill them all.

Yes, that is normal for Roa 1 ;-). But once you levelled a bit, those Warriors and Dwarfs are freaking killing machines!

Maybe a sily question but they lvl when they reach the xp? If yes you know an xp table? I really like to know how much xp they need to lvl up since im in the star dungeon of the first town and cleared a lvl and descided to go lower, btw learned the hard lesson never rest without guard those ogres have a nasty club.

http://nlt-hilfe.crystals-dsa-foren.de/page.php?211

Snoop around the site anyway, it is very helpful. You should be able to get most of it, as a dutch, even though it's german. Some parts are in english, too.

Go camping to get herbs --> sell the herbs and buy some decent armor and weapons. And then just stay alive ;-)

Oh, and in char generation go 13 on all good stats (might take ages, totally worth it). Check the other threads here, there is some more about this.

yeah thanks i have done some traveling went back to the first town sols herbc bough better equipment but sometimes hard to know where to go.