X Invader: Prologue

X Invader: Prologue is a free demo/prologue version of the full game "X Invader." It launched on January 31, 2023 as a standalone free product to showcase the full game. The store description explicitly lists the prologue's limited feature set (two weapons, four add-ons, one map, etc.) alongside what the full version would offer — framing this product as a preview, not an evolving game in its own right. The prologue received several patches and feature updates throughout early 2023 (bug fixes, UI improvements, auto-mode additions), but these were maintenance updates leading up to the full game's Early Access launch on August 23, 2023. The full game, X Invader (App ID 2090760), then received its 1.0 official release on August 13, 2024, completing the story with a new stage and four new bosses. Since the full game has now launched at version 1.0, the prologue has fulfilled its purpose as a free demo. There have been no developer communications specific to the prologue since August 2023, no unreleased DLC listed for it, and no indication of any further content planned for this prologue product. The prologue shipped as a fixed, intentionally limited preview and has not been updated since the full game's release. It is a complete, finished product by its original design.