One-Step Challenge (Thunderbolt challenge) consist of just a single phase, but with stricter daily and maximum drawdown limits compared to other challenges. However, if you manage to reach the profit target, you won't need to proceed to a Phase 2 as required in the Two-Step Challenge.
The Two-Step Challenge (Ascended challenge) involves two phases. In Phase 1, participants must meet specific conditions to advance to Phase 2 automatically. Phase 2 has its own set of requirements, which are generally less challenging compared to those of Phase 1.
The Three-Step Challenge (Astral challenge) involves three phases. In Phase 1, participants must meet specific conditions to advance to Phase 2 automatically. Phase 2 has its own set of requirements, which are generally less challenging compared to those of Phase 1. Phase 3 has again its own set of requirements, which are generally less challenging compared to those of Phase 1 and Phase 2.