1) The basic statement of "parties don't die" is not accurate. The groups (mixed player groups, so it's not just "one group") that I've played with have had several TPKs and near TPKs.
- may factors are involved: DM style, player style, group syngery, luck/die roll, levels of encounters, types of encounters, a poorly chosen tactic by you or a fellow player, orn exceptionally beneficial syngery or tactic taken by an enemy, etc.
2) You ask if your group "shuld want a harder game" -- but difficulty is relative to the enjoyment of the group. As an outsider, it's hard to say what your group should like better -- has your group tried it? Do they like the level of difficulty? If yes, then no changes needed. If no, then start looking for ways to change it to suit you. But if you haven't tried it and are just asking for ways to change it based on the (erroneous) rumor you've heard, then I think you'll just be setting yourself up for trouble.
3) If your group has tried it and decides it wants a harder game, then stuff that Little Raven says above is a good place to satrt...
- may factors are involved: DM style, player style, group syngery, luck/die roll, levels of encounters, types of encounters, a poorly chosen tactic by you or a fellow player, orn exceptionally beneficial syngery or tactic taken by an enemy, etc.
2) You ask if your group "shuld want a harder game" -- but difficulty is relative to the enjoyment of the group. As an outsider, it's hard to say what your group should like better -- has your group tried it? Do they like the level of difficulty? If yes, then no changes needed. If no, then start looking for ways to change it to suit you. But if you haven't tried it and are just asking for ways to change it based on the (erroneous) rumor you've heard, then I think you'll just be setting yourself up for trouble.
3) If your group has tried it and decides it wants a harder game, then stuff that Little Raven says above is a good place to satrt...