TL;DR
- Main story takes 20–25 hours for most players
- Skilled players can finish in 15 hours or less
- 100% completion and Platinum takes 30–45 hours
- The game has 8 biomes and 8 bosses to defeat
- No traditional difficulty settings — use Carcosan Modifiers to adjust challenge
- Much more forgiving than Returnal thanks to permanent upgrades
Saros is the latest PS5 exclusive from Housemarque, the studio behind Returnal. It’s a third-person roguelike shooter set on the alien planet Carcosa. You play as Arjun Devraj, fighting through eight dangerous biomes filled with enemies and tough bosses.
If you’re wondering how long it takes to beat Saros, the honest answer is: it depends. Your skill level, playstyle, and goals all affect the total time. Let’s break it all down clearly.
Saros Main Story Length: How Long to Beat the Campaign
For most players, beating the main story of Saros takes around 20 to 25 hours. This assumes you’re pushing through the main objectives without going out of your way for optional content.
If you’re already experienced with roguelikes — especially Returnal — you can finish closer to the 15-hour mark. You’ll understand the combat loop faster and die less often.
On the other hand, if Saros is your first roguelike, expect to spend more time in the earlier biomes. Some players report spending over seven hours in the opening sections alone, just learning enemy patterns and how to manage upgrades.
One biome typically takes around 30 to 40 minutes to clear under normal conditions. With eight biomes in total, that adds up quickly — especially when you factor in deaths and retries.
Saros vs Returnal: Which Is Longer?
Saros actually has more biomes and bosses than Returnal. Returnal had six biomes and six bosses. Saros has eight biomes and eight bosses. Despite this, Saros does not necessarily take longer to beat for the average player.
The big reason is the permanent progression system. In Saros, every time you die, you keep your upgrades from the Armor Matrix. This means you get stronger run after run, even when you fail. Returnal had true permadeath, which made it far more punishing.
So while the world of Carcosa is bigger, the tools you get make it more manageable.
Saros 8 Biomes: Full List
Here are all eight biomes you’ll explore in Saros:
- Shattered Rise
- Ancient Depths
- Shattered Descent
- Blighted Marsh
- Desecrated Fortress
- Acolyte’s Haven
- Cathedral
- Yellow Shore
Each biome has its own Overlord boss you must defeat to progress. The environments are largely randomized, so each run through a biome will feel slightly different.
Saros Completion Time: How Long for 100%
If you’re going for full completion — all upgrades, collectibles, and database entries — Saros takes around 30 to 45 hours. This can stretch further depending on your skill level and the modifiers you use.
The game has over 150 collectibles, including audio logs, text logs, and holo logs. Their locations are randomized, so you can’t just follow a fixed guide. You’ll need to explore thoroughly across multiple runs.
The good news: there are no missable collectibles in Saros. After finishing the story, you have free access to all biomes, so you can mop up anything you missed.
Saros Platinum Trophy: How Long Does It Take?
Saros has 45 trophies in total — 26 Bronze, 16 Silver, 2 Gold, and 1 Platinum. The Platinum is called “Mastered Carcosa” and requires you to unlock every other trophy first.
The estimated time to get the Platinum is 20 to 25+ hours for skilled players, and up to 40 to 45 hours for those going in without prior roguelike experience.
There are a few things that make the Platinum more approachable than Returnal’s:
- No online trophies — everything is solo
- No missable trophies — you can get everything post-story
- No difficulty-locked trophies — Carcosan Modifiers don’t block any trophies
Hardest Trophies in Saros
A few trophies will take real effort. Here are the ones to watch out for:
- Untouchable — Complete a biome without taking direct damage or losing Adrenaline. Very hard. Practice on Biome 3 (Shattered Descent), which has a shorter layout and a single-phase boss fight.
- Vincible — Complete a biome without using your Shield at all. Forces aggressive play.
- Bullet Paradise — Kill 1,995 enemies. This accumulates passively across your runs.
- Break The Cycle — Absorb 2,021 projectiles. Also builds up naturally over time.
- Full Arsenal — Unlock all main and power weapons and defeat 25 enemies with each.
Saros Carcosan Modifiers: Do They Affect Game Length?
Yes, they do. Saros doesn’t have a traditional easy or hard mode. Instead, it uses Carcosan Modifiers — unlocked after defeating the second boss.
There are two types:
- Protection Modifiers — Make the game easier. Boost your damage, speed up progression, and reduce boss pressure. These do not disable any trophies.
- Trial Modifiers — Make the game harder. Each biome becomes more demanding, enemies hit harder, and bosses take longer to defeat. These will significantly increase your playtime.
If you’re playing for the first time or trying to clean up trophies, Protection Modifiers are a smart choice. Use Trial Modifiers only once you’re comfortable with the combat system and boss patterns.
Tips to Beat Saros Faster
Want to finish Saros without grinding too long? Here are some practical tips:
- Prioritise the Armor Matrix early. Permanent upgrades like Second Chance (auto-revive on death) make a big difference in early runs.
- Don’t ignore Lucenite and Halcyon. These are key resources for upgrading your suit and abilities. Spend them wisely.
- Learn boss patterns before committing a full run. Understanding what each Overlord does will save you far more time than extra upgrades.
- Use Protection Modifiers for trophy cleanup. This lowers stress and lets you focus on specific objectives.
- Check the Databank often. It tracks your weapon kill percentages, which is important for the Full Arsenal trophy.
Is Saros Worth the Time Investment?
Saros sits in a comfortable range for a PS5 exclusive. At 20 to 25 hours for the story and up to 45 for the Platinum, it’s not a short game. But it’s also not padded with filler.
Each run gets faster as you unlock upgrades and learn the biomes. The game is built for replayability, and returning players will clear areas much more efficiently than they did the first time.
If you enjoyed Returnal but found it too punishing, Saros is a refined and more accessible version that still delivers a deep, rewarding challenge. Ready to jump in? You can buy Saros on the PlayStation Store and start your journey on Carcosa today.
Final Thoughts on Saros Game Length
Here’s a quick summary of Saros completion times:
- Experienced players (story only): ~15 hours
- Average players (story only): 20–25 hours
- 100% completion: 30–45 hours
- Platinum trophy: 20–45 hours depending on skill
No matter how you play it, Saros offers a satisfying amount of content. Take your time, upgrade your suit, and enjoy Carcosa.
