Saros Permanent Upgrades and Abilities Guide

Roguelike games often hinge on one key idea: even when a run collapses, you come back stronger the next time. Saros follows this philosophy with a set of permanent abilities and upgrades that radically reshape how you move through biomes, survive boss fights, and push the story forward. This guide explains every permanent ability, how to unlock it, and how to use each one to its full potential without undermining the challenge that defines the genre.

Why Permanent Upgrades Matter in Saros

In a traditional roguelike loop, each run is self-contained: you pick up power-ups, die, and lose almost everything. Many modern roguelites instead use persistent progression systems to maintain a sense of long-term growth, which research suggests can increase motivation and engagement by offering clear, incremental goals across sessions.¹ Saros uses its permanent upgrades to serve several purposes:

• Introduce new movement options that open previously unreachable paths.
• Smooth difficulty spikes by giving you more tools instead of simply lowering enemy damage.
• Gate story progression behind abilities that fit naturally into the world and narrative.
• Reward persistence by letting each failed run contribute to a stronger, more versatile Arjun.

Importantly, the developers have emphasized that permanent upgrades are designed to provide agency rather than trivialization of difficulty, echoing design trends seen in other modern action roguelikes and Souls-like titles that add optional modifiers instead of fixed difficulty modes.²

Overview: All Permanent Abilities in Saros

Over the course of the campaign you unlock six core permanent abilities. These are not minor stat bumps; each one significantly changes how you move, explore, or fight. They are obtained in a largely linear order as you progress through biomes and key story beats.

The exact narrative context and character interactions differ by playthrough, but the broad structure remains consistent. Next, we break down each upgrade in more detail.

Jump Network: Fast Travel and Run Planning

The Jump Network is usually your first major permanent unlock. It arrives after you defeat the games early flagship boss, a fight that marks the moment when Saros fully opens up. Once obtained, it functions as a fast travel network connecting key nodes across Carcosa.

How the Jump Network Changes Your Runs

The immediate advantage is obvious: less backtracking. But the strategic implications run deeper:

• Route optimization: After unlocking more biomes, you can choose which area to re-enter quickly, whether youre farming resources, chasing story goals, or attempting a specific boss again.
• Experimentation: Fast travel encourages trying alternate routes or revisiting areas with new abilities to uncover hidden paths and secrets.
• Lower time cost for learning: In a game where mastery comes from repeated attempts, speeding up travel supports the iterative learning loop that makes roguelites compelling.³

Tips for Using the Jump Network

• Use it whenever you unlock a new permanent ability to revisit old biomes and look for routes that were previously blocked.
• Plan your runs around specific goals: resource farming, story progression, or boss practice, and pick the closest Jump point accordingly.
• Dont ignore the narrative prompts that accompany new destinations; they often hint at where your next major upgrade lies.

Grapple: Verticality and Combat Mobility

The Grapple comes online after youve cleared an early mid-game biome and progressed through the Colony-style ruins. The ability is tied to a terminal encounter that reflects Saros approach to progression: world objects and story beats, rather than arbitrary menus, grant your power.

Traversal Advantages

With Grapple unlocked, special anchor points appear throughout biomes. These let you:

• Cross large chasms that were previously impossible to traverse.
• Reach elevated platforms containing upgrade materials, logs, and shortcuts.
• Bypass difficult ground-level encounters by taking high routes in certain rooms.

Combat Uses

Although Grapple is primarily a movement ability, it can subtly influence combat:

• Use grapple nodes to reposition quickly during boss fights, dodging sweeping attacks or line-of-sight projectiles.
• Chain a grapple with a mid-air dodge or weapon swap to stay mobile while maintaining pressure.
• In some arenas, climbing to higher vantage points lets you pick off enemies that struggle with vertical engagement.

Exploration Strategy

Once you unlock Grapple, its worth revisiting earlier zones. Look for:

• Previously unreachable ledges near conspicuous environmental storytelling elements.
• Side rooms that were visible but clearly out of reach during your first pass.
• Alternate boss approach paths or shortcuts that shorten later attempts.

Overdrive: Controlled Burst Damage

Overdrive is your first major offensive permanent upgrade. You acquire it as you push through a mid-game descent biome, typically after an encounter with a key NPC. Once active, a meter begins to build as you deal damage and survive encounters.

What Overdrive Does

Overdrive grants a powerful attack (often mapped to a dedicated input) that consumes a full or partial charge of an Overdrive meter. When triggered, it can:

• Deal massive damage to bosses or elite enemies.
• Clear clusters of weaker enemies to stabilize chaotic rooms.
• Synergize with other abilities, such as parries or melee stuns, to capitalize on openings.

When to Use Overdrive

The temptation is to dump Overdrive whenever it fills, but treating it as a limited resource often yields better results. Consider:

• Boss phases: Save Overdrive for key transition phases or when the boss exposes a weak point.
• Panic button: If you drop to low health in a room swarming with enemies, an Overdrive burst can reset the situation.
• Armor and shield break: Some enemies become significantly easier once their defenses are broken; Overdrive can accelerate that.

Parry: Turning Enemy Fire Against Them

Parry is unlocked by helping a character associated with Carcosan technology in a toxic, marsh-like biome. After assisting with powering a device, you are rewarded with the ability to parry incoming projectiles and sometimes melee attacks, depending on the enemy.

How Parry Works

Timing-based defensive mechanics like parrying have been shown to increase player engagement and deepen combat mastery when designed with clear visual and audio cues.⁴ In Saros, a successful parry typically:

• Reflects enemy projectiles back at theirsource.
• Staggers or interrupts certain enemies, opening them up for follow-ups.
• Conserves resources by avoiding shield drain and health loss.

Learning the Parry Window

To get comfortable with parrying:

• Practice on standard enemies with predictable, slow-moving shots before attempting it on bosses.
• Pay attention to telegraphs  glow effects, sound cues, or pose changes often mark the right timing window.
• Remember that some attacks cannot be parried; learning which ones to dodge instead is part of the skill curve.

Parry Synergies

As your build evolves, Parry synergizes with other systems:

• Combining parries with Overdrive lets you chain a reflected shot into a burst attack during boss openings.
• Parrying in tight spaces helps manage enemy bullet patterns without relying solely on dodging.

Eclipse Thread: Riding the Storm

Eclipse Thread is one of the more visually striking abilities. You encounter it while exploring a fortress-themed biome, where you find a gap that appears impossible to cross. Triggering an Eclipse event reveals glowing threads in the environment. Interacting with a bright node grants you the power to ride these threads.

Understanding Eclipse Threads

Outside of an Eclipse, threads are barely visible as faint white lines. During an Eclipse, they become bright, curling paths that let you:

• Teleport along fixed routes between two or more points in the same area.
• Bypass environmental hazards such as pits, corruption pools, or high-density enemy zones.
• Access hidden alcoves that contain high-value loot or lore entries.

Practical Uses in Combat and Exploration

Using Eclipse Thread effectively requires situational awareness:

• During Eclipses, scan for threads before jumping into a fight; they may offer escape routes or flanking paths.
• Some encounters can be tackled more safely by repositioning via threads and attacking from unexpected angles.
• When revisiting biomes, check areas that looked like dead ends; Eclipse Threads often turn them into shortcuts.

Blazing Strike: Late-Game Melee Evolution

Blazing Strike is typically your final permanent ability upgrade and is tied to reaching a late-game shore-like biome after completing the games second act. Unlike earlier abilities that introduce new movement or defensive tools, Blazing Strike fundamentally upgrades your melee attack.

Effects of Blazing Strike

Once acquired, Blazing Strike:

• Empowers your melee hit with higher base damage.
• Letsyou break yellow barriers, opening routes and secrets that have been teasing you since early biomes.
• Smashes locked containers of a specific type, reducing dependency on keys for certain rewards.
• Enables teleports to staggered enemies, allowing stylish finishers and rapid target switching.

Endgame Impact

Blazing Strike pushes Saros into a more aggressive rhythm:

• With increased melee damage, you can close distance and dispatch weaker foes quickly instead of kiting them.
• Teleporting to staggered enemies creates opportunities for chain kills across a room.
• Exploration reaches its peak, as you can finally destroy every yellow barrier youve seen throughout the journey.

Putting It All Together: Recommended Unlock Priorities

Unlike purely menu-driven skill trees, Saros ties these abilities to story progression, so you cannot freely reorder them. However, you can decide how much you lean on each one and how you structure your runs after they become available.

Early Game Focus

• Master basic movement and dodging while aiming to reach the first major boss for the Jump Network.
• Use Jump Network to revisit earlier biomes and gather resources more efficiently.

Mid-Game Focus

• Once Grapple and Overdrive are unlocked, practice using them together to stay mobile while delivering heavy damage.
• Earn Parry and gradually incorporate it into combat to reduce incoming damage and punish ranged enemies.

Late-Game Focus

• Use Eclipse Thread and Jump Network to explore every branch of the later biomes, looking for shortcuts and secrets.
• Lean into Blazing Strike to adopt a more aggressive melee-forward playstyle while cleaning up any remaining yellow barriers.

Frequently Asked Questions

Do I lose permanent abilities when I die in Saros?

No. Once a permanent ability such as Jump Network, Grapple, Overdrive, Parry, Eclipse Thread, or Blazing Strike is unlocked, it persists across all future Cycles. You keep these upgrades even if a run fails.

Can I skip any of the permanent abilities?

Not in a meaningful way. They are built into the story and level design, often required to cross specific gaps, break environmental barriers, or progress quests. You might delay using one, but eventually you will need all of them to see the full game.

Are permanent abilities the same as stat upgrades?

No. Permanent abilities change how you move and fight (fast travel, grappling, parrying, etc.), while stat upgrades usually come from systems like the Armor Matrix, which boosts attributes such as resilience, command, and drive permanently through resource investment.⁵

Can permanent upgrades make Saros too easy?

The game is designed so that these upgrades add options rather than trivialize challenges. The developers also provide in-world modifiers that can increase difficulty, including the ability to disable some permanent unlocks if you want a harder experience, similar to how some modern games offer challenge modifiers instead of fixed difficulty sliders.²

When should I revisit earlier biomes?

Good times to revisit older areas include right after unlocking Grapple, Eclipse Thread, or Blazing Strike. Each of these opens previously inaccessible routes, hidden chests, and shortcuts that are worth exploring, especially if youre chasing full completion or extra resources to bolster your build.