
Aethos
A downloadable game
Prepare to descend into the unknown
Aethos
Explore. Upgrade. Survive.
Humanities last hope lay beyond the stars. After decades of war earth has become a toxic wasteland. The Planet Aethos which is 10 light years away may be able to support human life , but first humans must send something that can handle the trip. Players take control of Kyra, an advanced AI explorer, you’ve spent years studying the distant planet Aethos from orbit in the mothership Elysium to see if the planet can support human life. But when a massive energy surge cripples Elysium, survival becomes your only mission. With damaged thrusters and failing systems, you must descend into the alien world below, scavenging for upgrades, unlocking new abilities, and uncovering the secrets buried deep within Aethos’ ancient ruins.
What Kyra doesn’t know is that the surge was no accident.
Deep within the planet waits zyrak a colossal sentient war construct forged by the superior Nyzari race. Sent to Aethos long before Kyra’s arrival, Zyrak’s purpose is to judge the planet’s potential for harvesting and to eliminate anything that jeopardizes the Nyzari claim. Upon detecting Kyra, he planted unstable energy cores across Aethos to disable Elysium and force her retreat, ensuring humanity never gains a foothold.
Kyra refuses to retreat. Instead, she descends into Aethos to hunt down and destroy the unstable energy cores disrupting Elysium so she can restore her ship and confront Zyrak herself. The fate of humanity hinges on stopping the metal titan who seeks to claim Aethos for the Nyzari.
Power Up & Evolve
Aethos is a world of forgotten technology and strange energy waiting to be harnessed. Discover powerful upgrades to enhance Kyra’s abilities and unlock new paths:
Boost Thrusters – Regain mobility and soar across hazardous terrain.
Plasma Blaster – Arm yourself to fight off hostile lifeforms.
Nano Shield – Absorb energy to charge your shields to survive harsh environments and enemy attacks.
Phase Shift – Slip between dimensions to bypass obstacles.
Cryo Cannon - Freeze enemies and use them as platforms
Charged Mega Shot - Consume Energy to charge your plasma gun to fire a devastating projectile
Teleport - At any given moment teleport back into your jump ship from where you can select different sectors to travel to or take refuge on Elysium
Combat & Energy System
In Aethos, you play as Kyra, a fully autonomous synthetic AI. Unlike traditional protagonists, Kyra relies on an internal energy system to power her advanced abilities. Energy is the backbone of combat and traversal, forcing players to make meaningful choices at every moment.
Even at zero energy, Kyra can still run, jump, and fire her standard plasma weapon ensuring the game always feels fair. However, her most powerful abilities require careful energy management.
Kyra’s hover ability consumes energy and allows her to reach higher platforms, cross dangerous gaps, and evade enemy attacks mid-air. As the game progresses, upgrades expand how energy can be used. Shield charge lets Kyra convert energy into health, offering a critical decision during combat: recover health now, or save energy for movement and survival.
Another upgrade allows Kyra to charger her plasma gun unleashing a devastating shot capable of tearing through enemies and certain walls. Once again, players must choose spend energy for raw power, or conserve it for exploration and positioning.
The energy system in Aethos ties combat, movement, and survival together, creating constant risk–reward decisions and ensuring every encounter feels intentional and strategic.

| Status | In development |
| Author | RBG Entertainment |
| Genre | Adventure |
| Tags | aethos, aethos-game, NES (Nintendo Entertainment System), nes-game, NES ROM, nintendo |
| Content | No generative AI was used |
Purchase
In order to download this game you must purchase it at or above the minimum price of $12 USD. You will get access to the following files:
Development log
- Full Game Availabe NOW!37 days ago
- **AETHOS Kickstarter now LIVE**82 days ago
- Looking for Demo Feedback — Now’s Your ChanceJan 12, 2026
- **UPDATED DEMO 2.6 PatchJan 09, 2026
- **Kickstarter Pre-Launch Page Up Now*Jan 03, 2026
















Comments
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May I buy a physical nes cart? This looks awesome!!
Hello there! Currently Physicals are shipping to backers from our KS campaign, within the next month or two the publisher will have physicals available on their website. when that happens I will be sure to post the link and announcement here on itch :)
Thank you for your NES game
Having blast👍
Keep up the great work😊👍
Excited for your game👍
Got my support 💪 👍
Thank you!
I may be biased from creating the soundtrack, but this game is AMAZING!! A wonderful aesthetic, great gameplay, and an extensive world to explore make Aethos a must have for the NES.
Aethos is easily one of the best demos I've played this year for a new NES game. Nice visuals, really good music and controls, interesting level design, fun and challenging boss fights and cool upgrades that play into the metroidvania part of the game. What else could you possibly want in a 8-bit game?
PLAY THIS!