Saros: Zenith gives experienced players a clean answer to a simple question: what if you could fight Carcosa’s bosses without replaying an entire run? The free update adds Overlord Rush, a timed boss mode built for practice, personal improvement, and leaderboard competition. It is available to every Saros owner on PS5 at no extra charge.
What is Overlord Rush?
Overlord Rush is a training simulation accessed through the Primary Unit in Passage. Instead of exploring normal regions, you enter a sequence of Overlord fights and try to clear them quickly. The mode records scores on an integrated leaderboard, so the objective is not merely survival. Clean movement, fast damage, and reliable execution all matter.
Housemarque divides the mode into three sets. Incursion and Ascension each contain three Overlords and are designed to take roughly 10 minutes. Totality is the endurance option: all eight Overlords appear in one continuous gauntlet. You can also filter global leaderboard results by Main Weapon, which creates a more useful comparison than one overall ranking. A strong score with your preferred weapon still has meaning even if it is not the fastest possible loadout.
Online leaderboard features require an internet connection and a PlayStation account. The official Zenith update overview confirms the mode, set structure, access point, and connectivity requirement.
How the boss fights change in Zenith
Overlord Rush does not flatten Saros into a damage test. The bosses were built as staged encounters with three distinct phases, changing arenas, hazards, bullets, beams, and physical attacks. A normal fight can last about three to eight minutes, while Zenith presents a tighter arcade rhythm. That means your score depends on recognizing each encounter’s movement problem, not just carrying a high-damage weapon.
The Prophet teaches the basic structure. The Architect destroys its tower arena and makes the grapple hook essential. The Shepherd uses tentacles to shrink the available space and attack from awkward directions. The Priestess mixes clones, transformation, platforming, and puzzle-like reads. The King is the final examination, replacing a single gimmick with an escalating test of the skills learned throughout the game. Housemarque and Nixxes explain those design goals in their official boss-development breakdown.
Best preparation before attempting Totality
Start with the shorter sets. Incursion and Ascension let you learn how quickly your preferred Main Weapon can push a phase without turning every mistake into a long restart. Use them to practice three habits: keep moving while dealing damage, identify which attacks demand a dash or jump, and reserve shield or parry responses for patterns you can read consistently.
Do not treat every second spent defending as lost time. A risky shortcut that causes a death destroys a run more thoroughly than a brief reposition. The best early goal is a repeatable clear, then a faster clear. Because leaderboard results can be filtered by weapon, you do not need to abandon the tool you understand best simply because another weapon dominates the overall board.
Players who struggle to parse the projectile field should also inspect Zenith’s new accessibility options before giving up. Slow Game Speed preserves enemy attacks but gives you more reaction time, and it can be toggled manually or activated automatically in combat. Auto-fire fires while you aim at a hostile, though perfect reloads still require a timed input. These settings can make patterns easier to learn without turning the mode into an automatic win.
Who should play Overlord Rush?
Totality is aimed at players who already know the campaign and want a concentrated mastery challenge. The shorter sets are more welcoming: they work as practice sessions, build familiarity with specific fights, and fit into a smaller play window. If you are still progressing through the main game, expect boss spoilers and consider finishing the story first.
Overlord Rush is the strongest part of Zenith for anyone who enjoys shaving time off a route or comparing weapon-specific execution. It respects the original encounters, removes the travel between them, and gives each retry a clear purpose. For more PS5 options in the same month, our October 2026 PS Plus catalog guide covers the dates, tiers, and standout additions.