Editing Surface Tension

{{ModeInfobox
|image1 = <tabber>
|-|Icon = [[File:ExcavationPointIcon.png]]
|-|Full Icon = [[File:ExcavationPointBanner.png]]
</tabber>
|map = [[Excavation Point]]
|waves = 15
|starting_cash = {{Money|1,100}}<br/>{{Money|1,200}} (Group Bonus)
|suggested_towers = [[Demoman]]
|rewards = {{Coins|800}} & {{Exp|70}} (First Time Triumph)<br/>{{Coins|160}} & {{Exp|70}} (Repeat Triumphs)
|health_scale = 20% (Duo)<br/>40% (Trio)<br/>60% (Quad)
|chapter = TDS: Origins
|previous_mission = [[Rock Bottom]]
|next_mission = [[The Final Approach]]
|star3_health = 75% or higher
|star3_time = 390s or lower
|star2_health = 50% or higher
|star2_time = 540s or lower
}}
==Description==
'''Surface Tension''' is the seventh mission for the first chapter of the [[Story Mode|Story]] mode.

This mission has health scaling, meaning that in duos, enemy health is increased by around 20%, in trio 40% and in quad 60%.

==Rewards==
'''Surface Tension''' has a {{Coins|800}} and {{Exp|70}} reward upon first triumph. Any subsequent triumphs will reward {{Coins|160}} and {{Exp|70}} instead. Losing on any wave will only reward {{Exp|0}}.

Additionally, the mode can also give out a bonus triumph reward. The possible rewards are:
*{{Color|Common}}
**[[Grenade]]
**[[Flash Bang]]
**[[Molotov]]
*{{Color|Uncommon}}
**{{TimeScaleTicket|Time Scale Ticket}}
**{{ReviveTicket|Revive Ticket}}
*{{Color|Rare}}
**[[Low Grade Crate]]
**{{SpinTicket|Spin Ticket}}
**[[Barricade]]
**[[Supply Drop]]
**[[AirStrike]]

==Enemies==
{| class="empty-table pad-5 align-center" style="width:80%; margin:1em auto"
|[[File:SpeedyAnim2.png|center|150px|link=Speedy]]
|[[File:NormalAnim1.png|center|150px|link=Normal]]
|[[File:Skeletonlunar.png|center|150px|link=Skeleton]]
|[[File:Breaker2Fallen.png|center|150px|link=Breaker2]]
|-
|[[Speedy]]<br/>Wave 1<br/>112 Total
|[[Normal]]<br/>Wave 1<br/>89 Total
|[[Skeleton]]<br/>Wave 3<br/>196+ Total
|[[Breaker2]]<br/>Wave 4<br/>251 Total
|-
|[[File:BreakerFallen.png|center|150px|link=Breaker]]
|[[File:GiantSkeletonLunar.png|center|150px|link=Giant Skeleton]]
|[[File:HiddenV5.png|center|150px|link=Hidden]]
|[[File:NecromancerModern.png|center|150px|link=Necromancer_(Modern_Enemy)]]
|-
|[[Breaker]]<br/>N/A<br/>251 Total
|[[Giant Skeleton]]<br/>Wave 5<br/>61 Total
|[[Hidden]]<br/>Wave 7<br/>139 Total
|[[Necromancer_(Modern_Enemy)|Necromancer]]<br/>Wave 8<br/>19 Total
|-
|[[File:Enraged.png|center|150px|link=Enraged]]
|[[File:Breaker3Fallen.png|center|150px|link=Breaker3]]
|[[File:{{#choose:HazmatAnim1.png|HazmatAnim2.png|HazmatAnim3.png}}|center|150px|link=Hazmat]]
|[[File:HiddenBossV5.png|center|150px|link=Hidden Boss]]
|-
|[[Enraged]]<br/>Wave 9<br/>93 Total
|[[Breaker3]]<br/>Wave 9<br/>134 Total
|[[Hazmat]]<br/>Wave 9<br/>90 Total
|[[Hidden Boss]]<br/>Wave 11<br/>4 Total
|-
|[[File:Breaker4Fallen.png|center|150px|link=Breaker4]]
|[[File:SpeedyBossNew.png|center|150px|link=Speedy Boss]]
|[[File:Dummy Boss.png|center|150px|link=Brute]]
|-
|[[Breaker4]]<br/>Wave 13<br/>27 Total
|[[Speedy Boss]]<br/>Wave 14<br/>7 Total
|[[Brute]]<br/>Wave 15<br/>1 Total
|}

==Wave Structure==
The wave bonus in this mission is:
:<big>{{Money|500}} + (Waves Completed - 1) × {{Money|450}}</big>
The wave clear bonus appears when every enemy from that wave was killed. It is 35% of the wave bonus in solo, while for duo, trio and quad it is 20%.

Depending on player count, the wave bonus is reduced using multipliers. These multipliers are:
{| class="wikitable pad-10 align-center" style="width:50%; margin:1em auto"
!Players
!Reduction per Player
!Total Reduction
|-
|Solo
|0%
|0%
|-
|Duo
|5%
|10%
|-
|Trio
|5%
|15%
|-
|Quad
|5%
|20%
|}

The waves in '''Surface Tension''' follow these timings:
{| class="wikitable pad-10 align-center" style="width:50%; margin:0 auto;"
!Waves
!Wave Timer
!Skip Time
|-
|1-13
|1:00
|0:20<ref>Skip at 0:40.</ref>
|-
|14
|1:30
|0:30<ref>Skip at 1:00.</ref>
|-
|15
|∞
|N/A
|}

'''Bolded''' names indicate an enemy's debut.
{| class="wikitable pad-10" style="width:100%; text-align:center;"
!Wave
! colspan="2" |Dialogue
!Enemy Type & Amount
|-
|1
| style="width:75px" |[[File:TrapperNormalNeutral.gif|75px|thumb|center|[[Trapper (Narrator)|Trapper]]]]
|Come on! Come one! We ain't get all day, and I ain't got enough traps to handle your mess-up. Thanks for that, by the way. Soooo excited to replace all of them later. Might want to try that radio you got there. We're close enough to the city where it should work.<br/>[[File:SurfaceTensionWave1-1.ogg|300px]]
|5x '''[[Speedy]]''', 7x '''[[Normal]]''', 5x [[Speedy]], 7x [[Normal]]
|-
| rowspan="2" |2
| style="width:75px" |[[File:REWCommanderNeutral.gif|75px|thumb|center|[[Commander (Narrator)|Commander]]]]
|Cyber City, this is Commander—can anybody read? We're stuck in the mine and need a way out quick.<br/>[[File:SurfaceTensionWave2-1.ogg|300px]]
| rowspan="2" |6x [[Normal]] ([[Bloated]]), 7x [[Speedy]], 6x [[Normal]] ([[Bloated]]), 7x [[Speedy]], 10x [[Normal]] ([[Bloated]])
|-
| style="width:75px" |[[File:ProfessorVNeutral.gif|75px|thumb|center|[[Professor V]]]]
|We copy, Commander. Hold on. Tracking your location now.<br/>[[File:SurfaceTensionWave2-2.ogg|300px]]
|-
|3
| style="width:75px" |[[File:ProfessorVResearch.gif|75px|thumb|center|[[Professor V]]]]
|We've got your location. There should be a platform nearby that can take you to reach the main city. Problem is that for you to use it would require us to shut down the city's defenses in that region. If we do that, the zombies will find their way in before we can even reactivate them.<br/>[[File:SurfaceTensionWave3-1.ogg|300px]]
|5x '''[[Skeleton]]''', 12x [[Normal]] ([[Nimble]]), 5x [[Skeleton]], 12x [[Normal]] ([[Nimble]]), 5x [[Skeleton]], 12x [[Normal]] ([[Nimble]]), 5x [[Skeleton]]
|-
| rowspan="2" |4
| style="width:75px" |[[File:SniperNormalNeutral.gif|75px|thumb|center|[[Sniper (Narrator)|Sniper]]]]
|Can't we just take the same way that Trapper did to get in here?<br/>[[File:SurfaceTensionWave4-1.ogg|300px]]
| rowspan="2" |5x '''[[Breaker2]]''', 12x [[Skeleton]], 5x [[Breaker2]]
|-
| style="width:75px" |[[File:TrapperNormalNeutral.gif|75px|thumb|center|[[Trapper (Narrator)|Trapper]]]]
|Nah, ship's sailed on that one unless you want to backtrack a mile. But hey, here's an idea. Why don't ya throw yourself into those meatbags and save yourself the trouble while you're at it.<br/>[[File:SurfaceTensionWave4-2.ogg|300px]]
|-
|5
| colspan="2" | -
|1x '''[[Giant Skeleton]]''', 17x [[Normal]] ([[Bloated]], [[Nimble]]), 1x [[Giant Skeleton]], 13x [[Speedy]] ([[Bloated]], [[Nimble]]), 18x [[Skeleton]]
|-
| rowspan="2" |6
| style="width:75px" |[[File:REWCommanderNeutral.gif|75px|thumb|center|[[Commander (Narrator)|Commander]]]]
|They're starting to catch up to use, V! What's the plan here?<br/>[[File:SurfaceTensionWave6-1.ogg|300px]]
| rowspan="2" |1x [[Giant Skeleton]], 6x [[Breaker2]], 8x [[Skeleton]], 1x [[Giant Skeleton]], 3x [[Breaker2]] ([[Bloated]])
|-
| style="width:75px" |[[File:ProfessorVResearch.gif|75px|thumb|center|[[Professor V]]]]
|We're moving everyone to the other side of the city and creating a containment area for you. We'll need some time. Try to hold on for as long as you can and make sure everyone is on that elevator. I won't be able to active this again later.<br/>[[File:SurfaceTensionWave6-2.ogg|300px]]
|-
|7
| colspan="2" | -
|14x [[Breaker2]], 20x [[Skeleton]], 18x [[Breaker2]], 24x '''[[Hidden]]''', 24x [[Skeleton]], 24x [[Breaker2]], 26x [[Hidden]]
|-
| rowspan="3" |8
| style="width:75px" |[[File:HopsConcerned.gif|75px|thumb|center|[[Hops]]]]
|Hey! Agh! ... Is — is anyone there!<br/>[[File:SurfaceTensionWave8-1.ogg|300px]]
| rowspan="3" |20x [[Skeleton]] ([[Bloated]], [[Nimble]]), 1x '''[[Necromancer (Modern Enemy)|Necromancer]]''', 2x [[Giant Skeleton]], 1x [[Necromancer (Modern Enemy)|Necromancer]], 18x [[Hidden]] ([[Nimble]]), 1x [[Giant Skeleton]] ([[Bloated]]), 1x [[Necromancer (Modern Enemy)|Necromancer]], 20x [[Skeleton]] ([[Bloated]], [[Nimble]]),
|-
| style="width:75px" |[[File:DemomanNormalAggressive.gif|75px|thumb|center|[[Demoman (Narrator)|Demoman]]]]
|Ah! Come on! Is that all you got?<br/>[[File:SurfaceTensionWav8-2.ogg|300px]]
|-
| style="width:75px" |[[File:SniperNormalNeutral.gif|75px|thumb|center|[[Sniper (Narrator)|Sniper]]]]
|I can't believe they've made it. They've gone mental.<br/>[[File:SurfaceTensionWave8-3.ogg|300px]]
|-
|9
| colspan="2" | -
|16x '''[[Enraged]]''', 5x '''[[Breaker3]]''' ([[Bloated]]), 3x [[Necromancer (Modern Enemy)|Necromancer]] ([[Hidden (Attribute)|Hidden]]), 2x [[Giant Skeleton]] ([[Nimble]]), 16x [[Enraged]], 24x '''[[Hazmat]]'''
|-
| rowspan="3" |10
| style="width:75px" |[[File:SoldierNormalAggressive.gif|75px|thumb|center|[[Soldier (Narrator)|Soldier]]]]
|No way. Guys! You need to get down here quick! We don't have much time!<br/>[[File:SurfaceTensionWave10-1.ogg|300px]]
| rowspan="3" |10x [[Breaker3]], 3x [[Giant Skeleton]] ([[Bloated]], [[Nimble]]), 10x [[Hidden]] ([[Bloated]], [[Nimble]]), 6x [[Enraged]] ([[Bloated]]), 8x [[Breaker2]] ([[Bloated]], [[Nimble]]), 3x [[Giant Skeleton]] ([[Bloated]], [[Nimble]]), 12x [[Hazmat]] ([[Bloated]])
|-
| style="width:75px" |[[File:HopsConcerned.gif|75px|thumb|center|[[Hops]]]]
|Not sure we can! It's like a amze in here. We're going to see if this tunnel leads us out of here but Agh! But someone loaded the place with mines!<br/>[[File:SurfaceTensionWave10-2.ogg|300px]]
|-
| style="width:75px" |[[File:TrapperNormalNeutral.gif|75px|thumb|center|[[Trapper (Narrator)|Trapper]]]]
|Heheheh...<br/>[[File:SurfaceTensionWave10-3.ogg|300px]]
|-
|11
| colspan="2" | -
|15x [[Hidden]] ([[Bloated]], [[Nimble]]), 4x [[Giant Skeleton]] ([[Bloated]], [[Hidden (Attribute)|Hidden]]), 2x '''[[Hidden Boss]]''', 15x [[Breaker3]] ([[Nimble]]), 20x [[Hazmat]] ([[Nimble]]), 20x [[Skeleton]] ([[Bloated]], [[Nimble]]), 3x [[Necromancer (Modern Enemy)|Necromancer]] ([[Nimble]])
|-
| rowspan="3" |12
| style="width:75px" |[[File:ProfessorVResearch.gif|75px|thumb|center|[[Professor V]]]]
|We've cleared out that side of the city. Get ready, we're shutting down the defenses and lowering the barricades. Zombies are already heading in our direction. Once you're out of there, you need to hold on until we can get the turrets back online.<br/>[[File:SurfaceTensionWave12-1.ogg|300px]]
| rowspan="3" |20x [[Enraged]] ([[Bloated]]), 16x [[Hazmat]] ([[Nimble]]), 5x [[Breaker3]] ([[Nimble]]), 6x [[Giant Skeleton]] ([[Bloated]], [[Nimble]]), 15x [[Enraged]] ([[Bloated]]), 3x [[Necromancer (Modern Enemy)|Necromancer]] ([[Bloated]], [[Nimble]])
|-
| style="width:75px" |[[File:REWCommanderAggressive.gif|75px|thumb|center|[[Commander (Narrator)|Commander]]]]
|We've got our plan. Recruit, helm me move the survivors to the platform! Soldier, cover Minigunner. Sniper. On me! V, we're almost ready, but two of our guys are stuck in the tunnels.<br/>[[File:SurfaceTensionWave12-2.ogg|300px]]
|-
| style="width:75px" |[[File:ProfessorVResearch.gif|75px|thumb|center|[[Professor V]]]]
|There are hundreds of gates to the city from the mines. Hopefully one of them will be open when the defenses go down. They just need to hurry.<br/>[[File:SurfaceTensionWave12-3.ogg|300px]]
|-
|13
| colspan="2" | -
|20x [[Breaker2]] ([[Bloated]], [[Nimble]]), 8x [[Breaker3]] ([[Bloated]], [[Nimble]]), 5x '''[[Breaker4]]''', 2x [[Hidden Boss]], 11x [[Hidden]] ([[Bloated]], [[Nimble]]), 5x [[Giant Skeleton]] ([[Bloated]], [[Nimble]]), 14x [[Breaker2]] ([[Bloated]], [[Nimble]]), 8x [[Breaker4]]
|-
| rowspan="2" |14
| style="width:75px" |[[File:SoldierNormalNeutral.gif|75px|thumb|center|[[Soldier (Narrator)|Soldier]]]]
|Reloading! Why did the city need all these crystals anyway? Argh!<br/>[[File:SurfaceTensionWave14-1.ogg|300px]]
| rowspan="2" |5x [[Necromancer (Modern Enemy)|Necromancer]] ([[Bloated]], [[Nimble]]), 35x [[Speedy]] ([[Bloated]], [[Nimble]]), 5x [[Breaker4]], 20x [[Skeleton]] ([[Bloated]], [[Nimble]]), 20x [[Enraged]] ([[Bloated]]), 13x [[Giant Skeleton]] ([[Bloated]], [[Nimble]]) 40x [[Speedy]] ([[Bloated]], [[Nimble]]), 1x '''[[Speedy Boss]]'''
|-
| style="width:75px" |[[File:TrapperNormalNeutral.gif|75px|thumb|center|[[Trapper (Narrator)|Trapper]]]]
|Haha! Ah — that's good stuff there, ya know? We mined these rocks for the little energy they carry. Think of it as a battery. I don't know much about the details but you can do some pretty nifty things once they're refined.<br/>[[File:SurfaceTensionWave14-2.ogg|300px]]
|-
| rowspan="3" |15
| style="width:75px" |[[File:REWCommanderAggressive.gif|75px|thumb|center|[[Commander (Narrator)|Commander]]]]
|V, Raise the platform! Now!<br/>[[File:SurfaceTensionWave15-1.ogg|300px]]
| rowspan="3" |4x [[Breaker4]], 2x [[Necromancer (Modern Enemy)|Necromancer]] ([[Hidden (Attribute)|Hidden]]), 35x [[Hidden]] ([[Nimble]], [[Bloated]]), 18x [[Hazmat]] ([[Bloated]], [[Nimble]]), 10x [[Breaker3]] ([[Bloated]], [[Nimble]]), 10x [[Giant Skeleton]] ([[Bloated]], [[Nimble]]), 1x '''[[Brute]]''' ([[Boss]]), 14x [[Skeleton]] ([[Bloated]], [[Nimble]]), 5x [[Speedy Boss]], 5x [[Breaker4]], 8x [[Giant Skeleton]] ([[Bloated]], [[Nimble]])
|-
| style="width:75px" |[[File:ProfessorVNeutral.gif|75px|thumb|center|[[Professor V]]]]
|Oh sure! Let me send you up now so you'll be crushed by a massive *DOOR*. Agh! Hold on, I'm trying to make sure you don't turn into paste.<br/>[[File:SurfaceTensionWave15-2.ogg|300px]]
|-
| style="width:75px" |[[File:SniperNormalNeutral.gif|75px|thumb|center|[[Sniper (Narrator)|Sniper]]]]
|We've got some bosses ahead! Watch your feet! There's some crawlers!<br/>[[File:SurfaceTensionWave15-3.ogg|300px]]
|-
! colspan="4" |Lose Dialogue
|-
| colspan="2" |[[File:CommaReac1.png|thumb|center|75px]][[File:CommaReac2.png|thumb|center|75px]][[File:CommaReac3.png|thumb|center|75px]]
| colspan="2" |One icon and dialogue is randomly chosen upon defeat:
•We're toast!<br />•OOF!<br />•Mission Failed, we'll get em' next time.<br />•Not enough numbers!<br />•Mistakes are just part of the journey..<br />•We're overrun chief!<br />•We'll get them next time!<br />•Don't give up!<br />•We need back up sergeant!<br />•We just had our grave dug..<br />•We have to fall back soldier!<br />•Oops! Try again!<br />•The enemies got to the base!<br />•Strategy is key!
|}

==Soundtracks==
{{Soundtrack|
{{GalleryHeader|Wave 1-14}}
<gallery>
(Official) Tower Defense Simulator OST - Biohazard
</gallery>
{{GalleryHeader|Wave 15}}
<gallery>
(Official) Tower Defense Simulator OST - They Are Coming...
</gallery>
}}

==Update History==
*'''7 August 2026''' - [[v2.5.0]]
**'''Rock Bottom''' added.

==Notes==
<references/>



{{StoryNavBox}}