Deliria, a 3D sandbox built in the spirit of Terraria by solo developer Linesway, is confirmed for Steam release on August 31, 2026. The project is entirely independent of Re-Logic, featuring procedurally generated worlds, a combo-driven combat system, and full co-op support. Below is everything confirmed about the game so far.
Deliria — solo developer Linesway announces 3D Terraria-inspired sandbox for Steam
What was announced
Linesway has set a firm release date of August 31, 2026 on Steam. The announcement confirms the game’s scope in full — this isn’t a prototype or early access tease, but a feature-complete launch target with single-player, cooperative, PvP, and creative modes all listed as supported at release.
The full feature set confirmed for launch includes:
- Infinite procedurally generated world with fully destructible, non-voxel terrain — caves, dungeons, and underground complexes are all diggable
- Advanced melee combat with combo chains; landing stylish hit strings awards style points, which directly increase rare loot drop chance
- Eight major bosses and hundreds of distinct enemy types, with AI that tracks player movement and anticipates attack trajectories
- Over 500 craftable items, plus mounts and flight mechanics
- Environmental events including Blood Moons, enemy invasions, and Lovecraftian god appearances that alter the world state
- Allied NPCs that can be armed and deployed in combat
- Orchestral soundtrack of 20+ compositions by composer Claire Noelle
Where Deliria comes from
The project began life in the Terraria community as an unofficial fan attempt to recreate the 2D sandbox in full 3D, built almost entirely by Linesway alone under the working title «Terraria 3D.» Over 2024–2025 it transitioned into a standalone commercial release with its own identity — Lovecraftian atmosphere, original bosses, and a bespoke 3D world-generation pipeline that Linesway is building without a studio behind him.
The rebranding to Deliria coincided with a shift in focus away from direct Terraria parity toward original systems: the combo-based style meter, settlement management, and AI enemies that adapt to player patterns are all mechanics with no direct equivalent in the source inspiration. For players tracking Terraria’s own 2026 roadmap, Deliria sits firmly outside Re-Logic’s ecosystem — but clearly targets the same audience.
The 2026 release window is shaping up to be competitive for sandbox survival on Steam. Enshrouded is also targeting a 2026 Steam release, giving players in the genre real choices before the year is out.
What this means for players
If Deliria delivers on its feature list, it will be the most fully realized attempt at a 3D Terraria-style sandbox to date — and the fact that one developer is responsible for all of it makes August 31 a date worth marking. The Steam page is already live; adding it to your wishlist now is the practical move while the release window is still months out.
Deliria releases on Steam on August 31, 2026, developed solo by Linesway — a 3D sandbox with 8 bosses, 500+ crafting items, Lovecraftian events, and full co-op. Good luck out there.
