Comparison

Underdark vs Tugloon

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Underdark

Defend the Eternal Flame from relentless dark forces in this tactical tower defense game. Strategically place towers, choose buffs, and level up your heroes to forge an impenetrable defense. Enjoy one-handed gameplay for strategic fun anytime, anywhere.

Highlights
  • Defend the Eternal Flame
  • One-handed gameplay
  • Customize defense strategy
  • Level up and choose buffs
  • Hero abilities and enhancements
  • Earn trophies
Features
Read full description

Defend the Flame from the dark! Level up, strategically place towers, and choose buffs to grow stronger. Keep the light alive! Defend the Eternal Flame: Experience the thrill of defending the flame from hordes of dark forces that besiege it! Feel the exhilaration as you clear stages, with each victory more satisfying than the last. One-Handed Gameplay: Enjoy easy-to-master controls, designed for one-handed play. Perfect for strategic fun anytime, anywhere. Customize Your Defense Strategy: Select buffs and strategically place towers to forge your path of resistance. As you level up and choose your growth buffs, your defense becomes an impenetrable fortress. Heroic Stand: Choose your guardians to stand against the night. Each hero brings unique abilities to the battlefield. Earn trophies, level up, and enhance your heroes to ensure the flame flickers on through the darkest nights!

About

Tugloon

Read full description

You don't steer the balloon — you hold the end of its string. Tugloon is a one-thumb reflex game with a twist you feel in your fingers. Press and drag anywhere, and the balloon follows the string with a soft, swinging delay. Learning that delay is the whole game. Slip through the gaps in drifting cloud bars. Hit a gap dead-center for a Perfect and stack your combo multiplier. Miss the wall by a hair, ride the swing, and keep climbing. The higher you go, the more the sky changes — morning, golden hour, twilight, night under the stars, and the rare shimmering aurora. Each one paints the whole screen. FEATURES • Pendulum control: press, drag, swing — easy to try, hard to master • Perfect passes and combo multipliers reward precision • 5 living skies as you climb higher • 16 badges to earn and 5 balloons to unlock • Daily Run: the same course for everyone, every day • English and Turkish • Plays offline — no account needed Take hold of the string and see how high you can climb.

Screenshots

Underdark4 screens
Tugloon4 screens

Verdict

The call

The clearest difference is in-app purchases: Tugloon at none against Underdark's 35. On price, update cadence, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Underdark sells 34 one-off in-app purchases. Tugloon asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 4 days. The most recent releases landed on October 16, 2026 and October 2, 2026 respectively.

Scorecard1 real difference · 9 level
Underdark versus Tugloon: the parameters behind the verdict, then further details
ParameterUnderdarkTugloon
PriceFreeFree
Rating4.8 (4.1K ratings) — better—
Positive reviews72.0% of reviews—
Number of ratings4.1K — better—
Update frequencyEvery 4 daysEvery 4 days
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size508 MB7 MB
Age rating4+12+
DeveloperSeungHo ChungTaha CIMEN

Bugs and requests

Underdark

Reported bugs

3 issues
  • Goblin tower factory causing game slowdown
  • Consecutive login rewards reset after updates
  • Invisible towers in multiplayer

Requested features

5 requests
  • Ability to rotate towers
  • Move towers after placement
  • More enemy variety and animations
  • Improved co-op mode
  • Simplified progression system

Tugloon

Not enough reviews yet to summarise bugs or requests.

In-app purchases

34 purchases

Underdark

One-time34
  • Event Package 1$0.99
  • daily_package_01$0.99
  • season_growth_1$0.99
Show 31 more
  • dailyshop_1$1.99
  • blade_pakcage$2.99
  • daily_package_02$2.99
  • exp_2x$3.49
  • skin_30501$3.49
  • Event Package 2$3.99
  • pet_package$4.99
  • weekly_package_01$6.99
  • add_speed$7.49
  • pass_hero_115$7.49
  • pass_hero_102$7.49
  • pass_hero_110$7.49
  • season_superpass_1$7.99
  • pack_remove_ads$7.99
  • daily_package_03$7.99
  • hero_legend_santa$8.99
  • hero_legend_tower$8.99
  • hero_legend_armor$8.99
  • Event Package 3$8.99
  • hero_legend_joker$8.99
  • hero_legend_necromancer$8.99
  • hero_legend_chicken$8.99
  • tower_legend_614$8.99
  • ud_pack_20106$8.99
  • tower_legend_628$8.99
  • pack_remove_ads2$10.99
  • Event Package 4$12.99
  • season_level_1$16.99
  • season_stage_1$16.99
  • Event Package 5$17.99
  • season_hyperpass_1$18.99
None

Tugloon

No in-app purchases

Questions

Is Underdark free?
Underdark is free to download, with in-app purchases available.
Is Tugloon free?
Tugloon is free to download, with no in-app purchases.
Do Underdark or Tugloon have ads?
Both Underdark and Tugloon show ads.
Which is updated more often, Underdark or Tugloon?
Underdark ships an update every 4 days, and Tugloon every 4 days. Most recently, Underdark was updated on October 16, 2026 and Tugloon on October 2, 2026.

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