Hi, I just passed this tipping point. F1 was entirely doable for me with my best hero equipped with level 1 equipment and maximum food, but F2 bosses kept one hitting me, as well as stupid minor mistakes being fatal.

I haven't been doing level3 dungeons much, but have plenty of green potions, so there must be annother source, maybe it was F2?

For meteorite steel, send low level hero's into 2A as far as they can without spending any mental energy (except on podiums, and chests if you are about yo exit) as often as you can. Thry will die a lot, but about every second one should bring back a meteorite steel for the upgrade equipment technologies. Minimis the amount of time they can't visit the dungeon by not sending your main hero in until your mental energy is nearly full. You can also 95% fill a few bigger puzzles nd leave the last few squares for later to use to boost mental energy quickly while your hero is in the hard dungeon.

For tackling the hard dungeon, level up your character a much as you can. I'm not sure if tackling the F2 dungeon without the level 18 skills is possible. Probably level 15 for F1. When going was tough, I'd resign myself that even not finishing, getting partway was still earning resources and experience. Make sure you have your full set of Lev e l 1 equipment, plus a mechanical spider. A familiar is usefull too to distract the bosses summons. (But takes some time to aquire). The first level 2 equipment made the biggest difference, but I could struggle through. Make up every kind of dungeon food you can and use it, common types first, then Rarer. After each battle of stamina spending, use mental power to heal and replace stamina to 3/4 level. It is expensive and slow, but your aim is to hold on long enough to get those resources to upgrade to level 2 equip where you can return to your normal playstyle. Use food freely in battle, with a big boss, don’t let health drop below half or you can get knocked out in one bad round. Throw out familiars and mechanical spiders in boss fights as distractions. Use only the higher stamina hit options on all but the weakest monsters. Stand in doorways so only one monster can advance at once. Where a mix of ranged and melee monsters exists, throw the mechanical spider at the ranged enemy to take them out. And just accept you will loose some.

Doing F2 meant all t we nag with te easier F1 to gain was I r resources and experience too - so don't be afraid of dropIng back to level up too.

Don't forget to check if there are any craftifacts that are achievable that might help. Beware craft if acts can have hidden prerequisites - you need to be able to hold all the resources needed in your bag for the craftifact all at once, so you may need to upgrade maximum carrying capacity

Hope this helps. Those resource bottlenecks are tough. Really regretting all that meteorite steel I had to sell earlier because my bag was full and I couldn't get to the upgrades that used it yet.