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This article is about Challenge Maps. You may be looking for Challenge Trials.
Challenge Maps

Sandbox Only Content

Challenge Maps was previously removed on the 24th of September 2025, though it has been made available through the Sandbox mode later.
It is not accessible anywhere else in the game. This page will attempt to include information about both the version before removal and its re-added version.

For quests, see Quests, while for mission quests, see Mission Quests.

Challenge Maps were regular maps with modifiers applied to them, which increased their difficulty. It could be found in the Quests menu under the Challenges tab. Upon triumphing the map, players were rewarded with various rewards. This feature has been removed from the main game and can currently only be accessed through Sandbox mode.

Mechanics

Challenge Maps did not require anything to be activated, other than having a level requirement of Level 50. Rewards from a Challenge Map could only be claimed once each week. Losing granted no rewards other than Experience0 EXP. Triumphing granted rewards that changed based on the challenge.

One Challenge Map appeared every week, resetting at 00:00 UTC on Sundays. The challenge was the same for each player.

Last Challenge

All enemies have high defenses, tank and bloated modifiers.
2
137
4
440


Challenges

  • Every player has the Scout, Sniper, Demoman, Soldier and Hunter in their loadout. Wave structure is made harder, some enemy stats are altered, starting cash is set to Cash$700 (Cash$800 if in the Paradoxum Games group) and towers are intended to give back their total cost when sold. Detailed change list can be found here.
Rewards: Time Scale Ticket3, Gem125, Experience400 EXP and three High Grade Crates
  • After Wave 5, one type of tower will be locked per player each wave. Additionally, wave structure is updated to spawn more enemies and give them attributes, making it more challenging. Detailed change list can be found here.
Rewards: Gem100, Time Scale Ticket2, Experience200 EXP and two High Grade Crates
  • Enemies have their defense increased by 50% and are all given the Bloated attribute, while some of them have the Tank attribute. Starting cash is set to Cash$800 (Cash$900 if in the Paradoxum Games group) and wave bonus is boosted heavily. Detailed change list can be found here.
Rewards: Gem137, Time Scale Ticket4, Experience440 EXP and two Nukes[1]
  • Most enemies spawn twice, waves are altered to have stronger enemies and wave bonus is reduced. Starting cash is set to Cash$700 (Cash$800 if in the Paradoxum Games group). Detailed change list can be found here.
Rewards: Time Scale Ticket2, Gem110, Experience330 EXP and two High Grade Crates[2]
  • Enemies have the Slime attribute. Several enemies are replaced by their stronger variant found in Polluted Wasteland II, such as the Abomination and the Nuclear Monster. Starting cash is set to Cash$1,400 (Cash$1,500 if in the Paradoxum Games group) and wave bonus is increased. Detailed change list can be found here.
Rewards: Gem200, Experience600 EXP, Time Scale Ticket4 and three Blizzard Bombs[3]
  • Enemies have the Nimble attribute. Starting cash is set to Cash$700 (Cash$800 if in the Paradoxum Games group). Detailed change list can be found here.
Rewards: Gem110, Time Scale Ticket3, Experience385 EXP and two Blizzard Bombs[4]

Sandbox-exclusive

  • Hordes of enemies with few waves between new debuts and multiple boss fights as waves progress.
Rewards: Gem150, Time Scale Ticket4, Experience500 EXP and three Nukes

Other Maps

Certain maps also used the Challenge Maps system to alter the match, by for example changing statistics of enemies. However, they were not intended to appear as a proper Challenge Map which appeared in the Challenge Map rotation. These were all the map which use the Challenge Map system, but were not actually Challenge Maps as they could not appear as one of the Challenge Maps every week.

Challenge History

If a challenge started in one month but ended in another, it will be listed in the month that it started in.

September 2025
21 September 2025 – 28 September 2025

All enemies have high defenses, tank and bloated modifiers.
2
137
4
440


14 September 2025 – 21 September 2025

AOE focused challenge that pits the player against swarms of enemies.
2
110
2
330


7 September 2025 – 14 September 2025

Players are given a loadout of basic towers.
3
125
3
400



August 2025
31 August 2025 – 7 September 2025

AOE focused challenge that pits the player against swarms of enemies.
2
100
300
2


24 August 2025 – 31 August 2025

Players are given a loadout of basic towers.
3
125
3
400


17 August 2025 – 24 August 2025

After wave 5; once per wave, a tower type will be jailed per player.
2
100
2
300


10 August 2025 – 17 August 2025

All enemies have Slime.
3
212
5
680


3 August 2025 – 10 August 2025

All enemies have high defenses, tank and bloated modifiers.
2
125
4
400



July 2025
27 July 2025 – 3 August 2025

All enemies have Nimble.
2
110
3
385


20 July 2025 – 27 July 2025

After wave 5; once per wave, a tower type will be jailed per player.
2
100
2
300


13 July 2025 – 20 July 2025

All enemies have high defenses, tank and bloated modifiers.
2
125
4
400


6 July 2025 – 13 July 2025

Players are given a loadout of basic towers.
3
125
400
3



June 2025
29 June 2025 – 6 July 2025

AOE focused challenge that pits the player against swarms of enemies.
2
110
2
330


22 June 2025 – 29 June 2025

Players are given a loadout of basic towers.
3
125
400
3


15 June 2025 – 22 June 2025

All enemies have Slime.
3
175
4
560


1 June 2025 – 8 June 2025

AOE focused challenge that pits the player against swarms of enemies.
2
110
2
330



May 2025
25 May 2025 – 1 June 2025

All enemies have Nimble.
2
110
3
385


18 May 2025 – 25 May 2025

All enemies have Slime.
3
175
4
560


11 May 2025 – 18 May 2025

All enemies have Nimble.
2
110
3
385


4 May 2025 – 11 May 2025

All enemies have Slime.
3
175
4
560



April 2025
27 April 2025 – 4 May 2025

Players are given a loadout of basic towers.
3
125
400
3


20 April 2025 – 27 April 2025

All enemies have Nimble.
2
100
3
350


13 April 2025 – 20 April 2025

AOE focused challenge that pits the player against swarms of enemies.
2
100
300
2


6 April 2025 – 13 April 2025

All enemies have high defenses, tank and bloated modifiers.
2
125
4
400



March 2025
30 March 2025 – 6 April 2025

Players are given a loadout of basic towers.
3
125
3
400


23 March 2025 – 30 March 2025

All enemies have Slime.
3
212
5
680


16 March 2025 – 23 March 2025

All enemies have high defenses, tank and bloated modifiers.
2
125
4
400


9 March 2025 – 16 March 2025

All enemies have Slime.
3
212
5
680


2 March 2025 – 9 March 2025

All enemies have Nimble.
2
110
3
385



February 2025
23 February 2025 – 2 March 2025

All enemies have Slime.
3
212
5
680


16 February 2025 – 23 February 2025

Players are given a loadout of basic towers.
3
125
400
3


8 February 2025 – 16 February 2025

All enemies have Nimble.
2
110
3
385


2 February 2025 – 8 February 2025

AOE focused challenge that pits the player against swarms of enemies.
2
100
300
2



January 2025
26 January 2025 – 2 February 2025

All enemies have high defenses, tank and bloated modifiers.
2
137
4
440


19 January 2025 – 26 January 2025

All enemies have Nimble.
2
110
3
385


12 January 2025 – 19 January 2025

After wave 5; once per wave, a tower type will be jailed per player.
2
100
2
300


5 January 2025 – 12 January 2025

All enemies have high defenses, tank and bloated modifiers.
2
125
4
400



December 2024
29 December 2024 – 5 January 2024

AOE focused challenge that pits the player against swarms of enemies.
2
110
2
330


22 December 2024 – 29 December 2024

Players are given a loadout of basic towers.
3
125
400
3


15 December 2024 – 22 December 2024

All enemies have Slime.
3
175
4
560


8 December 2024 – 15 December 2024

All enemies have high defenses, tank and bloated modifiers.
2
137
4
440


1 December 2024 – 8 December 2024

AOE focused challenge that pits the player against swarms of enemies.
2
110
2
330



November 2024
24 November 2024 – 1 December 2024

All enemies have Nimble.
2
110
3
385


17 November 2024 – 24 November 2024

Players are given a loadout of basic towers.
3
125
3
400


10 November 2024 – 17 November 2024

AOE focused challenge that pits the player against swarms of enemies.
2
110
2
330


3 November 2024 – 10 November 2024

All enemies have Nimble.
2
110
3
385



October 2024
27 October 2024 – 3 November 2024

Players are given a loadout of basic towers.
3
125
3
400


20 October 2024 – 27 October 2024

All enemies have Slime.
3
175
4
560


13 October 2024 – 20 October 2024

All enemies have Nimble.
2
110
3
385


6 October 2024 – 13 October 2024

AOE focused challenge that pits the player against swarms of enemies.
2
110
2
330



September 2024
29 September 2024 – 6 October 2024

All enemies have high defenses, tank and bloated modifiers.
2
125
4
400


22 September 2024 – 29 September 2024

After wave 5; once per wave, a tower type will be jailed per player.
2
100
2
300


15 September 2024 – 22 September 2024

All enemies have high defenses, tank and bloated modifiers.
2
125
4
400


8 September 2024 – 15 September 2024

AOE focused challenge that pits the player against swarms of enemies.
2
110
2
330


1 September 2024 – 8 September 2024

All enemies have high defenses, tank and bloated modifiers.
2
125
4
400



August 2024
25 August 2024 – 1 September 2024

All enemies have Slime.
3
175
4
560


18 August 2024 – 25 August 2024

Players are given a loadout of basic towers.
3
125
3
400


11 August 2024 – 18 August 2024

All enemies have Slime.
3
175
4
560


4 August 2024 – 11 August 2024

Players are given a loadout of basic towers.
3
125
3
400



July 2024
28 July 2024 – 4 August 2024

AOE focused challenge that pits the player against swarms of enemies.
2
110
2
330


21 July 2024 – 28 July 2024

After wave 5; once per wave, a tower type will be jailed per player.
2
100
2
300


14 July 2024 – 21 July 2024

All enemies have Slime.
3
175
4
560


7 July 2024 – 14 July 2024

AOE focused challenge that pits the player against swarms of enemies.
2
100
2
300



June 2024
30 June 2024 – 7 July 2024

Players are given a loadout of basic towers.
3
125
3
400


23 June 2024 – 30 June 2024

After wave 5; once per wave, a tower type will be jailed per player.
2
100
2
300


22 June 2024 – 23 June 2024

All enemies have high defenses, tank and bloated modifiers.
2
125
4
400


Update History

Notes

  1. ↑ Base rewards are Gem125, Time Scale Ticket4, Experience400 EXP and two Nukes.
  2. ↑ Base rewards are Time Scale Ticket2, Gem100, Experience300 EXP and two High Grade Crates.
  3. ↑ Base rewards are Gem125, Experience400 EXP, Time Scale Ticket3 and three Blizzard Bombs.
  4. ↑ Base rewards are Gem100, Experience350 EXP, Time Scale Ticket3 and two Blizzard Bombs.


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