Official Tower Defense Simulator Wiki
Succumb to the dark sun! Like many before you.
2,686
articles
Penumbras
Solar Eclipse • Narrator • Solar Requiem

You will not survive this meeting. I will make sure of it.
―Penumbras on Wave 15 (Sorrowful Remains)

Description

Penumbras, internally referred to as Penumbra, is the final boss Sorrowful Remains that appears there as part of the Solar Requiem Event. It has far higher health than all of the enemies that appeared before it but walks slower than them. As it is a Boss enemy in the event, most stalls were either weaker or did not work on it at all.

It has three abilities:

  1. Shard Toss makes it summon three spheres of energy that fire beams. This will create circles around them which last for 6 seconds and have a range of 10, applying a 20% Range Debuff to all towers without Stun Immunity.
  2. Rain Of Crystals causes Penumbras to summon a circular light in its range of 60 at a tower or unit. This light has a range of 7.5 and will move to another part of the map at a speed of 10, causing projectiles to rain down that stun all towers in the circle for 3 seconds while also dealing 75 damage to units.
  3. Summoning Eclipse has Penumbras summoning two Lunar Titans.

Logbook Description

"Penumbras was Umbra's head knight, and no one in her army was more loyal. Few ever learned that he had been born a prince, or that his royal line carried a magic his family spent generations hiding. He fell defending Umbra once, on the outskirts of her tower. He remembers it clearly, and he cannot understand why he is standing again. He fights for her still, but the path he is on leads him through the start of their memories. Somewhere beneath it all lies a promise he made to her, and something he never found the chance to say."

Appearance

Penumbras takes appearance of a pink humanoid wearing damaged armor and a ripped, purple shirt. Penumbras has demon-like horns and a broken objects reminiscient of a penumbra levitating above its head. Penumbras has brown hair. Below its hair, on its shoulders, and in a few other places, light pink energy is present. Penumbras wears a tattered, grey cape.

Strategy

  • Although most towers are capable of taking down Penumbras, due to it summoning Lunar Titans towers with lead detection are preferable here, which includes the Golden Scout, Snowballer and Golden Demoman.
    • Towers without lead detection like the Militant or Golden Soldier can also be used, though they need to be supported by lead detection towers for the summons.

Sounds

Sound Description
When the Penumbras performs Summoning Eclipse ability
When the Penumbras performs Shard Toss ability
When the Penumbras performs Shard Toss ability
When the Penumbras performs Rain Of Crystals ability
When the Penumbras performs Rain Of Crystals ability
When the Penumbras performs Rain Of Crystals ability

Icons

Renders

Miscellaneous

Update History

  • 9 October 2026 - v2.14.0
    • Penumbras added.

Notes


Sorrowful Remains (Solar Requiem Event, Night I)
Previous Debut Current Debut Next Debut
Lunar Titan
Wave 13
Penumbras
Wave 15
End
N/A


Normal Gamemode Enemies
Easy Mode
Casual Mode
Intermediate Mode
Molten Mode
Fallen Mode
Frost Mode
Challenge Trials
Hardcore Mode
Voidcore Mode
Special & PVP Enemies
Basic Arena
Molten Arena
Fallen Arena
Polluted Wasteland II
Badlands II
Pizza Party
Tutorial
Headache Headquarters
Sandbox Exclusive Enemies
Legacy Molten Mode
Golden Mode
Legacy Fallen Mode
Brain Rot
Other
Event Enemies
The Heights
Area 51
Nightmare Carnival
Village of Despair
Eggy Island
Trick or Threat Town
Outpost 32
(Frost Invasion)
Cyber City
Solar Eclipse Event Rotfield
Foggy Forest
Tower Outskirts
Totality Tower
D00M's Revenge
Cold Ambush
Lunar Overture Event A Dark Tale
The Haunted Past
The Great Finale
Krampus Frosthold
Huevous Hunt
The Classic Event Classic Candy Cane Lane
Classic Winter
Classic Forest Camp
Classic Island Chaos
Classic Castle
Hexscape Event Failed Gateway
The Nightmare Realm
Containment
Pls Donate
Outpost 32
(Operation I.C.E)
Korblox Temple
Bathroom Approach
Sk8 P4rk Noob
Pro
Master
Extreme
Halloween 2025 Live Events
Null & Void Event Outpost 16
Banlands
Blind Faith
The Narratorium
Backyard Legends Event Backyard Beginnings
Competition Court
Victory Field
Halloween 2026 Live Events
Solar Requiem Event Sorrowful Remains
Legacy Enemies
Replaced
Pre-MEGA
Polluted Wasteland
Hidden Wave (Legacy)
Other
Log in or create an account to post, reply and vote.