walkthrough

How to grind Tower of Sisyphus (endless mode)

The endless tower mode added in Ascension. Here is how to get the Phrike trophy and how to grind score.

How to grind Tower of Sisyphus

The Tower of Sisyphus is an endless mode added in the Ascension update. Floor by floor, score-attack, with an Adrenaline-amplified scoring system. Three trophies tied to it.

How to access

  • Same portal as Ascension co-op (Helios crash). Choose Tower of Sisyphus instead.
  • Solo or 2-player co-op.

Scoring basics

  • Adrenaline level multiplies your score. Hits taken reset Adrenaline = score reset.
  • Pickups during Score Streak give multipliers. A 30-second streak with no hits = 5x multiplier.
  • Floor clears also multiply.

Trophy targets

  • The Wages of Death — Reach floor 7 (the Phrike-tier boss). Manageable in 1-2 hours.
  • Eternal Vigilance — Reach floor 14. Needs solid play.
  • The Climb to the Top — Reach floor 20. Hard. ~3-5 hours of grinding.

Best loadout

  • Hollowseeker with Portal Beam as primary.
  • Pyroshell Caster as backup (huge boss DPS).
  • Astronaut Figurine every time you can afford it.

If stuck: Tower phantoms are the boss enemies on floor 7 and 14. They're identical to campaign Phrike and Hyperion respectively. Practice on those bosses first.