Your journey here is far from over. You may notice that the monsters you're fighting are getting harder to kill, taking longer to slay even with your new heroes and upgrades. This is intended. By now you should have Amenhotep at around level 75 and the lvl 50 upgrade purchased. You will see that unlocked at level 150, quite the jump, is the "ASCENSION" ability. This is where you are headed. At this point, or very soon after, you will see 'Ascend for +1 Hero Souls' above your heroes in the upper right corner of the interface. You earned this HS from leveling your heroes up a total of 2000 times. Keep progressing to level 100 and you will fight a Centennial boss with a guaranteed reward of 1 Hero Soul every time you kill him in that world. From now on each boss you face has a 25% chance to be Primal and give you a few Hero Souls when you kill it. These will be your main staple for HS in the future. Every 10 floors you beat from then on (F100) will also award you a Gild for a random hero. These will give that hero a +50% damage boost and stacks as many times as you have gilds. When you get at least 5 Hero Souls (some suggest a minimum of 8) you should use that ASCENSION ability. It will prompt you with a warning that you will have all of your heroes lost but will gain those HS. It is worth it! Ascend and your goal is to do the exact same thing you did the first time, only faster. Don't worry, it gets fancy soon, but we need to build some hero souls first. Your objective in the early game is saving up Hero Souls!