To level up in Lies of P, players need to spend Ergo at Stargazers. Players can choose to apply Ergo to any attribute they wish, but it is important to note that each added attribute point will increase the amount of Ergo needed for the next point. Therefore, players should choose which stats to level up carefully. The most important stat to level up first in Lies of P is Vitality, which increases the players maximum HP and improves Guard Regain. Other stats that players should focus on leveling up early on include Capacity, Technique, and Advance. However, players should avoid focusing on increasing their damage output by upgrading Motivity, Technique, and Advance early on, as each of these stats increases the damage output of weapons that use a particular scaling.