Tower Defense Simulator Null & Void Event (Halloween 2025)

The Null & Void Halloween Event (2025) marks one of the most cinematic and content-heavy updates Tower Defense Simulator (TDS) has released in recent memory.
Night 1 introduces a completely new story-driven mode, multiple difficulty levels, rebalanced towers, and a massive Null & Void Battle Pass filled with rewards — from emotes and stickers to exclusive skins and consumables.

This guide covers everything added in Night 1, how the event works, which towers got rebalanced, and what to expect in the upcoming nights.

1. Event Name & Access

Event: Null & Void – Halloween 2025

Phase: Night 1 (Easy & Hard Modes Available)

Location: Accessible from the main lobby portal

To start the event:

1. Join the game and enter the Null & Void event portal.
2. Choose your difficulty — Easy or Hard Mode.
3. You’ll be loaded into a cinematic cutscene before gameplay begins.

Both difficulties share the same story content, but Hard Mode includes stronger enemies, faster waves, and higher curse modifiers.

2. The Null & Void Battle Pass

A new Battle Pass system has been introduced for this event.
By progressing through the pass, you can unlock:

• Exclusive Halloween Skins
• Emotes & Stickers
• Name Tags
• Consumable Items

How to Progress:

Earn Void Tokens and Candies by completing Night 1 and event challenges.
These resources are used to level up the pass and claim rewards.

3. New & Returning Towers

Two iconic event towers have returned and been rebalanced:

• Slasher (Reworked for better burst potential and range scaling)
• Hollow Punk (Improved consistency, updated attack animation, and better DPS scaling)

Additionally, several regular towers received balance updates to keep up with modern gameplay.

---

Rebalanced Towers

Tower	Update Summary
Harvester	Buffed overall performance; faster swing animation.
Archer	Adjusted projectile speed and range curve.
Golden Scout	Minor buff to damage consistency.
Swarmer	Reworked poison ticks for smoother DPS.
Golden Soldier	Adjusted firing rate and visual effects.
Mercenary Base	Fixed spawn bug and improved targeting AI.

4. Night 1 Storyline

Night 1 kicks off with a cinematic cutscene — a first for a TDS event.
It begins with your squad of scientists experimenting with portal technology to merge god shards, an operation intended to unify power sources and open infinite possibilities.

However, the experiment goes wrong…

Event Story Summary:

• A portal destabilizes during the merging process.
• Containment protocols fail, causing a massive Null Energy outbreak.
• This unleashes corrupted towers, including a Corrupted Pyromancer, which serve as the main antagonists of Night 1.
• Players must fight through corrupted waves and defend against the void outbreak.

The event is fully voiced and animated — a major step forward for TDS storytelling.

5. Gameplay Mechanics: Curses & Hazards

During the event, players periodically face Curses — negative modifiers that affect your towers or gameplay environment.
You’ll be prompted to select one curse at random intervals.

Examples of Curses:

• 15% Cooldown Debuff (Towers reload abilities slower)
• 5% Range Reduction + Slower Attack Speed
• Damage Falloff Increase (weaker long-range shots)

These curses stack and significantly change how each run feels, especially on Hard Mode.

Tip: Pick cooldown-related curses over attack speed ones — they have less impact over time.

6. Enemies & Bosses

Night 1 introduces several corrupted variants of existing enemies.
Expect to see reimagined versions of early and mid-game foes, visually infused with void energy.

Confirmed Corrupted Units:

• Corrupted Pyromancer (Mini-Boss) – Spawns mid-event, attacks towers with fire AoE.
• Corrupted APCs – Enemy vehicles that deploy smaller mobs when destroyed.
• Void-Infused Walkers & Elites – Tankier units with energy shields.

Major Boss: Rift Walker

The main antagonist of Night 1, Rift Walker, arrives near the final waves.

Abilities:

• Spawns Corrupted APCs and Pyromancer Minions.
• Launches energy blasts that disable nearby towers temporarily.
• High HP pool with defensive phase shields.

Lore Note: Rift Walker’s introduction hints at new meta guardians being added in future nights. His dialogue references “protecting the meta” — connecting him to TDS’s expanding narrative.

7. Rewards & Drops

Completing Night 1 grants:

• Void Tokens (for Battle Pass progression)
• Candy Currency (event store)
• Exclusive Stickers & Consumables
• Night 1 Badge (Easy/Hard Completion)

You’ll need these badges to unlock future event nights as they release.

8. Recommended Loadouts

For Easy Mode

• Crook Boss (Gold) – Reliable all-rounder.
• Military Base – Early wave control.
• Accelerator (Excels) – Core DPS unit.
• Commander – Essential for damage coordination.
• Rocketeer – Useful for AoE waves.

For Hard Mode

• Engineer – Early utility, good consistency.
• Accelerator / Ranger Combo – Boss melting duo.
• Golden Crook Boss – Great sustain for cursed waves.
• Commander + DJ Booth – Speed and range synergy.
• Swarmer or Harvester – For dealing with grouped enemies.

9. Cutscenes & Visual Additions

This update introduces real-time cutscenes, ambient visuals, and fully scripted sequences.
The cinematic storytelling in Night 1 transitions directly into gameplay, giving it a Fortnite-style event structure.

• Background visuals include collapsing lab environments and void distortions.
• Player characters interact via dialogue and sound effects.
• Expect new voice lines from Umbra, Rift Walker, and unnamed scientists.

The Null & Void Event – Night 1 is one of the most ambitious TDS updates ever made.
With cinematic storytelling, cursed modifiers, and a fully integrated battle pass, it redefines what seasonal events can offer.