Tek N Astra (Sea of Dreams)
by TonyTek
Tek N Astra, released as Sea of Dreams, adds a large post-Ender Dragon progression layer with bosses, gear and three playable classes for Forge on 1.12.2.
What it does
Sea of Dreams is built for players who have already finished the main game and want more to do. Its content is inspired by several community projects and by the Undertale series, and the bosses fight back hard enough that the author advises not to build or stand near a home while one is active. Progress is slow: the author describes the mod as grindy, and some of the content is tedious even for players used to long grinds.
The mod needs Future MC and Universal Tweaks, which must be installed alongside it. Installation covers the server and each player's game. Forge is the only loader with files, and every build targets 1.12.2. The latest Forge file is V7-5, published on 2026-06-14, and the mod was first published on 2024-12-11. It is categorized under Magic, with Equipment, Mobs and World generation as secondary categories, and it is released under All rights reserved, so it is not open source.
Key features
Three playable classes
Players pick from Melee, Ranger and Mage, each with its own matching weapons and armor.
Post-Ender Dragon content
The additions are aimed at the stage of a world after the Ender Dragon has been defeated.
Boss encounters
Bosses deal heavy damage, so the fights call for preparation and distance from the player's base.
Undertale-inspired content
Several bosses and items draw on the Undertale series, a theme shared with some alternatives on other loaders.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Use cases
Who it’s for: Players of 1.12.2 Forge worlds who have beaten the Ender Dragon and want long-term progression, with combat that rewards a chosen class and a willingness to grind.
How it compares
An Undertale & Deltarune Mod targets Forge 1.20.1 and is server-side only, released under the MIT License, so players can join without installing it. Ender Dragon Sword also runs on Forge 1.20.1 but is client and server, with All rights reserved and no open-source code. TeenyTale and Undertale Soul Weapons share the same Forge 1.20.1 target, with TeenyTale also needing both sides, and Undertale Soul Weapons released under the Apache License 2.0.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Tek N Astra (Sea of Dreams) | Forge | 1.12.2 | Client and server | 2026-06-14 |
| An Undertale & Deltarune Mod | Forge | 1.20.1 | Server-side only | 2024-06-30 |
| Ender Dragon Sword | Forge | 1.20.1 | Client and server | 2025-07-01 |
| TeenyTale | Forge | 1.20.1 | Client and server | 2024-12-15 |
| Undertale Soul Weapons | Forge | 1.20.1 | Client and server | 2024-05-29 |
Questions
Does Tek N Astra need Future MC?
Does the server need Tek N Astra?
Which game version does Sea of Dreams support?
In the catalog
Tek N Astra (Sea of Dreams) is one of 7,216 Magic mods on ModsFinder, and one of 3,927 Magic mods for Forge. 2,920 mods support Minecraft 1.12.2.
More from TonyTek
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What the author says
Teknology is a RPG/Adventure mod inspired by Hypixel Skyblock that aims to add more content to make Post-Ender Dragon more enjoyable. Documentation of the mod is provided in the Patchouli book. Before getting started be warned that the bosses can cause damage to your base, so don't use those near your house! Another…
Official listing
- Modrinth page
- modrinth.com/mod/teknastra
- Owner
- TonyTek
- Published
- 2024-12-11
- Updated on Modrinth
- 2026-06-14
- Facts verified
- 2026-10-15