56%Good matchEchoes of Aincrad
48%5k48% positive reviews, Mixed across 5k reviews·Anime · JRPG
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As part of the Pioneer Corps, form a party with other players and take on missions to protect humanity's last remaining land and reclaim the contaminated territories from the enemies!
Native Isekai Defense: Prologue
SteamNative Isekai Defense: Prologue is the FREE prologue version and does not reflect the final version of the game. Here you will be able to play co-op with your friends up to 4 players, more stages, characters, and features will be available in the full version.
Native Isekai Defense takes place in a world called Lumina. Hundreds of years ago, those who called themselves the Progenitors introduced themselves on the world stage. With armies of monsters under their command, the world of Lumina was plunged into an endless great war. Centuries passed, the Progenitors and their monster armies managed to conquer and contaminate one-third of the world. However, hope was not yet lost. The genius alchemist, Ariel, succeeded in creating the Ethereal Nexus, an artifact capable of purifying the land of Lumina that had been contaminated by monsters. With this creation, the time to strike back had arrived. Thus, Project Eden was launched. The Pioneer Corps was formed to go forth and reclaim the lands that had been contaminated!
Join the Pioneer Corps alongside other players and become an elite soldier of Lumina! Form parties with various characters and take on different missions!

The time has come to reclaim the lands of Lumina! Activate the Ethereal Nexus in the corrupted lands and protect it from monster attacks until the land is fully purified!

Watch every move you make! Look around—are your allies nearby? Make sure you don’t hurt them! But if it happens, remember, this is war! Friendly fire is inevitable! There is no war without sacrifice!

In every mission, you will charge into enemy-occupied territory! Use your skills and weapons, and fight alongside your comrades! Protect the Ethereal Nexus with your life, or the life of your comrades! Survive and reclaim our land! And become a hero of Lumina!

An endless onslaught of monsters! And there’s a big boss too?! Still, you must survive! Even if it means stepping over the lives of your comrades! For the future! Let’s reclaim and free our land from their filthy hands!

Steam data © 2026 Valve Corporation. Trademarks are property of their respective owners.
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The best games like Native Isekai Defense: Prologue are Echoes of Aincrad, Frontier Hunter: Erza’s Wheel of Fortune, Nine Treasures of Liuyin, Afterimage, and Mist Slayer.
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