Ancient Portal

Ancient Portal

Difficulty	Advanced
Music	Haunted House
Default Co-op division	Free-for-all
Introduced	Version 45.0
Entrances	1	Exits	2
Junctions	1	Water?	Yes

Removables and gizmos
Realign Portal: $0 (×1)

Path lengths (RBS)
Path		Easy	Medium	Hard
Left		25.0	22.7	20.0
Right		19.6	17.8	15.7

Ancient Portal is an Advanced map in Bloons TD 6, introduced in version 45.0. It takes place in a nighttime landscape with portals controlled by a monkey near the bottom.

Mechanics

Hero pedestals

Ancient Portal contains four pedestals, labelled by crescent shapes, which each grant two buffs to Heroes placed on them.

Pedestal location	Buff #1	Buff #2
Topmost, near the entrance	Camo detection	Monkey Intelligence Bureau
Second from the top, below the spiral	Damage (+1)	Range (+30%)
Inside the water pool	Ability cooldown (-25%)	Hero XP (+25%)
Inside the ruins	Attack cooldown (-30%)	Pierce (+2)

Totems

When 15,000 Bloons are popped within 70 units of the top-right portal, the 3 totems can be activated to create an explosion. When activated, it deals $50+3(\text{round}-1)$ damage to all Bloons on screen and stuns them for 9 seconds.

Layout

Ancient Portal has a unique map layout. It has one entrance, but has two different exits. Only one exit is active at a time, depending on which portal is open.

Clicking the monkey near the bottom of the map gives the option to "Realign Portal", which affects what path the Bloons come out from after reaching the portal. Realigning the portal is free.

A straight path (to the right of the map) is activated by default. It is slightly shorter than the one on the left, but it has no line-of-sight blocker with the entrance, meaning towers can attack both paths. It also has a small lake for water towers near it.

A curved path (to the left of the map) is slightly longer than the one on the right, but there are line of sight blockers around it, meaning only elevated towers or "flying" towers can see through them.

Unlike other types of Bloons, Boss Bloons spawn near the exit of the bottom right path and move directly to the bottom left path. Which portal is open does not matter.

Strategy

Ancient Portal is widely seen as the easiest Advanced map, even easier than Cornfield, Another Brick, Dark Path and Off The Coast. This is due to long track length of the top-right to bottom-left path, the flexibility of strategy options due to the interchangeable lanes, the bends on the top-right & bottom-left, the wide coverage of the top-right & bottom-right achieved by towers between them, and the pedestals' powerful buffs to heroes. Unlike nearly every other Advanced map, Ancient Portal can be beaten with relative ease using general guidelines below.

• Basic Deflation strategies
• Basic Apopalypse strategies
• Basic Half Cash strategies
• Basic Alternate Bloons Rounds strategies
• Basic Impoppable strategies
• Basic CHIMPS strategies

The unique layout of Ancient Portal, with many bends and 2 entirely separated parts of one lane, allows certain strategies (listed below) to excel.

Recommended towers and upgrades

Name	Portrait	Reasoning
Pop and Awe		The many bends on both the top-right and bottom-left is optimal for Pop and Awe. Align the portal to teleport Bloons to the left if using Pop and Awe, as the longer track length and ability to retarget to the bends there enhance Pop and Awe's power further. It deals colossal damage, especially when paired with Striker Jones and Relentless Glue's stun bonuses. Use First Strike Capability or Spike Storm to cover Pop and Awe's weakness against the BAD.
Perma-Spike		The single-lane nature of this map and relatively long track length aid Perma-Spike greatly. It effectively guarantees victory by tanking the Bloons that towers may leak, in addition to covering the DDT weakness of towers such as Pop and Awe.
Overdrive, The Tack Zone		The abundance of bends greatly enhance Overdrive and Tack Zone's power. When placed near a bend, they do solid damage throughout the mid-game and late-game. Use Geraldo, Embrittlement, Berserker Brew, and Primary Training to further maximize their damage.

Gallery

• 
  Easter theme
• 
  Halloween theme
• 
  Holiday theme
• 
  Island statue
• 
  Ability cooldown buff icon
• 
  Hero XP buff icon

In other languages

This section was last updated for: version 48.1

Language	Text	Notes
Arabic	البوابة القديمة	—
Danish	Oldgamle portal	—
German	Uraltes Portal	—
Spanish	Portal antiguo	—
Spanish (Latin America)	Portal antiguo	—
Finnish	Muinainen portaali	—
French	Portail ancien	—
Italian	Portale ancestrale	—
Japanese	いにしえのポータル	—
Korean	고대의 차원문	—
Dutch	Oeroud portaal	—
Norwegian	Urgammel portal	—
Polish	Pradawny portal	—
Portuguese (Brazil)	Portal Antigo	—
Russian	Древний портал	—
Swedish	Urgammal Portal	—
Thai	ประตูโบราณ	—
Turkish	Kadim Portal	—
Chinese (simplified)	古代传送门	—
Chinese (traditional)	古代傳送門	—

References

• Path lengths sourced from the BTD6 Index

Navigation

v • t • e Maps in Bloons TD 6
Beginner Monkey Meadow • In The Loop • Skull Tweak • Three Mines 'Round • Spa Pits • Tinkerton • Tree Stump • Town Center • Middle of the Road • One Two Tree • Scrapyard • The Cabin • Resort • Skates • Lotus Island • Candy Falls • Winter Park • Carved • Park Path • Alpine Run • Frozen Over • Cubism • Four Circles • Hedge • End Of The Road • Logs Intermediate Lost Crevasse • Luminous Cove • Ancient Portal • Sulfur Springs • Water Park • Polyphemus • Covered Garden • Quarry • Quiet Street • Bloonarius Prime • Balance • Encrypted • Bazaar • Adora's Temple • Spring Spring • KartsNDarts • Moon Landing • Haunted • Downstream • Firing Range • Cracked • Streambed • Chutes • Rake • Spice Islands • Protect The Yacht* Advanced Mushroom Grotto • Party Parade • Sunset Gulch • Enchanted Glade • Last Resort • Castle Revenge • Dark Path • Erosion • Midnight Mansion • Sunken Columns • X Factor • Mesa • Geared • Spillway • Cargo • Pat's Pond • Peninsula • High Finance • Another Brick • Off The Coast • Cornfield • Underground Expert Tricky Tracks • Glacial Trail • Dark Dungeons • Sanctuary • Ravine • Flooded Valley • Infernal • Bloody Puddles • Workshop • Quad • Dark Castle • Muddy Puddles • #Ouch • Blons*
* Not playable in standard solo or Co-op play