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08 Sep 2026
| Published | Title | Build |
|---|---|---|
| Slightly eased Essence Rush difficulty Slightly eased Essence Rush difficulty by increasing the time restored from stage and combat star essence, giving players more room to recover while keeping the mode tense. | — | |
| Steam Update Notes - Career & Challenge Update Star essence is now safely banked when reaching Rebirth, even if you continue into New Game+. · Added and refined weapon power-ups, including the Crescent Round. · Improved ship weapon compatibility and ammunition balancing. · Improved controller navigation on the Career completion screen. · Steam star-essence achievements now unlock correctly at Rebirth checkpoints. · Additional gameplay, save… | — | |
| Zenia’s opening is new, the guns hit harder, and the Cybernetic Runner no longer What’s new • New intro menu. A more mythical opening before you start a run; the void, Zenia, and the last light of the Siderans. • Weapon upgrades. Power-ups have more punch and a clearer feel in combat. • Cybernetic Runner. Signature bombs now fire with the weapon power-up, not instead of it. Grab Plasma Comet, Crescent Round, or another upgrade and you still drop both mines. | — | |
| Aug 11 release notes What’s New · Every run now begins with the Navy Interceptor, the ship Zenia first escaped in. · At each new level, the game randomly switches to another unlocked ship. · All available ships will appear before the random rotation repeats. · Fish Swarms and Jellyfish Blooms now alternate during a run. · Difficulty options are now labeled Easy, Normal, and Hard. · Fixed an issue where an in-app pu… | — | |
| New weapons and improvements Release Notes This update introduces new weapon effects and reworks Green Eyes performance without sacrificing the encounter’s signature swarm. New Weapons · Added the Flower Round, a procedural spinning projectile with sharp, weapon-like petals. · After leaving Zenia’s gun, the flower releases its petals one at a time in multiple directions. · Direct contact cancels the flower and deals impact… | — | |
| Update focuses on making The Last Sideran more colorful This update focuses on making The Last Sideran more colorful, varied, responsive, and fun to replay. Space environments now use glowing, breathing dark colors instead of relying entirely on black backgrounds. Ships have a brighter neon presentation, and the intro now features a procedural, colorful star-tunnel effect inspired by classic screensavers. Combat received several improvements: Weapon… | — | |
| Combat & Transition Polish Next-round arrivals now feature a powerful thruster bang, camera shake, braking jets, and a smoother zero-gravity glide. · Asteroid-field exits have returned to their cleaner hyperspace transition. · Nose shields now grow into place instead of appearing instantly. · Fixed Green Eyes repeating after The Assessment in Career mode. · Added larger violet-and-amber Iris Gunners. These enemies fire i… | — | |
| Green-eye boss patterns New green-eye boss patterns. The boss formation can scatter, wave, split into moving clusters, and rearrange | — | |
| The Last Sideran story spike and breathing Spike eye now pulses smoothly from the current brightness. The people in the plaza have a small breath to make them seem more alive | — | |
| Hotfix: New game intro story crash Fixed a crash that occurred when returning to the main menu during the story. | — | |
| Hotfix: Stage 3 Progression Fix We’ve identified an issue where some players can defeat all 11/11 enemies on Stage 3 while armed, but the game does not advance. We sincerely apologize for the interruption. We’ve prepared a fix and have deployed the hotfix. Thank you for your patience and for playing The Last Sideran. | — |
| Date | Day | Time | Patch title | Build ID | Branch | Depots | Download Δ |
|---|---|---|---|---|---|---|---|
| 9 Sep 2026new | Wed | 06:38 | No patch notes · unannounced build | 25202473 | public | 3 | — |
| 8 Sep 2026 | Tue | 05:55 | No patch notes · unannounced build | 25180661 | public | 3 | — |
| 8 Sep 2026 | Tue | 04:27 | No patch notes · unannounced build | 25179303 | public | 3 | — |
| 5 Sep 2026 | Sat | 20:17 | No patch notes · unannounced build | 25144959 | public | 3 | — |
| 5 Sep 2026 | Sat | 18:58 | No patch notes · unannounced build | 25144365 | public | 3 | — |
| 4 Sep 2026 | Fri | 22:31 | No patch notes · unannounced build | 25113185 | public | 3 | — |
| 1 Sep 2026 | Tue | 18:14 | No patch notes · unannounced build | 25063902 | public | 3 | — |