Housemarque's 2021 hit Returnal delivered a frenetic roguelite experience set on an eerie alien planet, combining bullet-hell mechanics with third-person shooting. Now, the game studio is back with Saros, a title that on the surface appears to follow the same formula. However, Saros introduces a host of design changes that distinguish it from its predecessor. From combat mechanics to progression systems, Saros promises a fresh yet familiar experience for fans of the genre. Let’s dive into the features that set Saros apart.

Combat Reinvented: The Shield

At the core of Saros’ gameplay is a new shield mechanic, which fundamentally changes how players handle the waves of projectiles characteristic of Housemarque's games. Unlike Returnal’s Selene, who had to rely solely on precision dodging to survive bullet barrages, Saros’ protagonist, Arjun Devraj, can activate a projectile-absorbing shield. By pressing the right bumper, the shield absorbs blue bullets without penalty and yellow bullets at the cost of introducing corruption to Arjun’s health bar. Absorbing bullets fills a power meter, enabling the use of stronger weapons, adding a layer of strategy to combat.

This risk-versus-reward mechanic sits at the heart of Saros’ gameplay loop. While dodging remains an option, the shield encourages players to make moment-to-moment decisions based on their current resources and priorities. The trade-off? Corruption from yellow bullets temporarily reduces Arjun’s maximum health, forcing players to adapt their strategies through increasingly chaotic fights. The shield also allows the game to scale up enemy attacks, with faster bullet speeds and denser projectile patterns becoming the norm. Quick reflexes and smart use of the shield will be crucial.

Progression Systems: Bigger Stakes

One major overhaul in Saros comes in its progression systems. Returnal had limited permanent progression tied to unlocking new traits and abilities. Saros, on the other hand, introduces the Armor Matrix—a skill tree that significantly enhances Arjun with each successive run. Players collect lucinite, a new resource, during their runs to boost their stats and unlock powerful upgrades.

Lucinite serves dual purposes: during the run, it boosts weapon proficiency, improving the quality of weapons found. Post-run, it can be used to climb the skill tree. Some upgrades grant small bonuses to core stats, while others offer major perks requiring a rare resource called Hian. Progression is further tied to defeating bosses, which unlock new tiers of the skill tree, creating a cycle of incremental improvement and milestone-based growth. These changes make Saros more forgiving and rewarding than Returnal, appealing to players who enjoy long-term development across runs.

Health Systems Reworked

Both Saros and Returnal emphasize managing health as a core survivability challenge, but they handle it in distinct ways. In Returnal, picking up health items while at full health would contribute toward increasing maximum health. Saros changes this mechanic, offering a small lucinite bonus instead. Maximum health can still be increased during runs, but via dedicated power-ups rather than repeated health pickups. This adjustment simplifies the system while maintaining the tension of managing limited vitality.

A Focused Arsenal

Saros brings an entirely new weapon set while refining some mechanics from Returnal. Alternate weapon fires are now static rather than randomized, with each gun featuring a unique and predictable secondary mode. For instance, the Horde shotgun’s alternate fire changes the bullet spread pattern, while the Stalwart shotgun unleashes a plate wall of destruction. This predictability allows players to learn and master specific weapons, adding depth to the combat system.

Power weapons provide additional flexibility, functioning like supercharged tools for high-damage opportunities. Examples include a rocket launcher for crowd control, a machine gun-style rapid-fire weapon for sustained damage, and a sniper rifle tuned for critical hits. The introduction of corrupted weapon variants, which offer higher damage tied to Arjun’s corruption level, amplifies the risk-reward dynamic.

Difficulty Customization: Carcosen Modifiers

Saros introduces a Hades-like difficulty modifier system dubbed the Carcosen Modifier. This gives players the ability to fine-tune the challenge of their runs by balancing helpful and detrimental modifiers. For example, boosting player damage might require enhancing enemy aggression. This system caters to players who want more control over their experience, from fine-tuning just how punishing encounters feel to testing their limits for greater rewards.

Structural Changes

While Returnal split its progression across six disconnected biomes, Saros reimagines its flow. Runs begin in the Passage, a central hub where players can upgrade their character, interact with NPCs, and access previously explored biomes. Players can choose to start fresh or dive directly into a biome they've unlocked, giving more control over how they approach the game. This streamlined approach respects the time investment roguelites demand, offering options for both long and short sessions.

No More Consumables or Shops

Returnal’s consumable items provided vital on-the-spot boosts, but Saros ditches these entirely. Similarly, the shops from Returnal—where players exchanged mid-run currency for upgrades—have been removed. Lucinite replaces the traditional currency, now focusing on upgrading weapon proficiency or permanent advancements. This design encourages players to rely on skill and strategic resource management rather than banking on temporary lifelines.

Encounters with Risk and Reward

While traditional malfunctions and parasites—upgrades with drawbacks—are gone, Saros doubles down on the concept of high-risk upgrades. In each biome, activating an eclipse heightens enemy difficulty while offering corrupted artifact rewards. These artifacts grant powerful bonuses at the cost of imposing corruption-based penalties, which persist until the biome's overlord is defeated. The system encourages calculated risk-taking, rewarding bold players who can adapt to the added danger.

Second Chances

Survivability also sees a shake-up. Unlike Returnal’s options to stack multiple extra lives via artifacts and reconstructors, Saros limits players to just one second chance per biome, earned through completing optional nightmare strands. This mechanic makes death feel more consequential and pushes players to carefully evaluate when to risk their reprieve.

Closing Thoughts

Saros builds on Returnal’s foundation, offering a more forgiving and strategic roguelite experience. With its focus on permanent progression, a combat shield that opens up new tactical opportunities, and robust customization in difficulty, Saros is a game designed to appeal not just to fans of Returnal but to newcomers to the genre. Housemarque has taken a winning formula and innovated with depth and nuance, ensuring that Arjun Devraj’s journey feels like a bold standalone adventure rather than a retread of Selene's haunted pilgrimage.

Whether you’re diving headfirst into Saros’ bullet storms or carefully plotting your next upgrade on the Armor Matrix, the game offers a balance of familiar thrills and exciting new mechanics.