Comparison

Zombie Directive vs Undersoil

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

Head to head
About

Zombie Directive

Features
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COMMAND THE ZOMBIE APOCALYPSE! Lead mutant hordes to crush humanity's last stronghold in 7 days! ā–ø Strategic Evolution: Unlock 30+ unique zombies with combo mutations ā–ø Dynamic Battles: Exploit day/night cycles to ambush human defenses ā–ø Survival Warfare: Counter escalating human tech and reinforcements

About

Undersoil

Features
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Somewhere under this beach is everything anyone ever lost. Undersoil is a pixel-art dig-and-collect game about the slow, satisfying business of finding things. Sweep a metal detector along the shoreline until a beam of light marks a spot. Dig it out. Carry it home. Brush the dirt away by hand and find out what you actually pulled up — and how well it survived down there. Then the only decision that matters: sell it, or put it on a pedestal where everyone can see it. THE LOOP • Sweep the sand until the detector finds something • Dig it out on the tap bar before the dirt wins • Carry the find overhead to the cleaning table • Spray and scrub off the grime by hand to see what you've got • Watch the condition land: OK, Fine, Good, Excellent, Mint or Pristine • Sell it for cash, or display it and let it earn gold while you are gone 159 THINGS TO FIND Bottle caps and fish bones near the top. Crowns, meteorites and things that have no business being buried on a beach a long way below. Twelve rarity tiers run from Common to Primordial, and only your single best specimen of each earns a pedestal — turn up a better one and the old one gets bumped. SIX LEVELS DOWN Home Beach is only the lid. Take the miner's cart down through The Undersoil, The Deep, the Lava Pools, the Sulphur Sink and the Abyssal Trench. Each level buries richer things and asks for better gear to get them out. GEAR THAT EARNS ITS KEEP Shovels, detectors, sprays and bags, five tiers deep at every level. A better detector finds more. A better shovel digs faster. A bigger bag means fewer walks back. A MUSEUM THAT PAYS Thirty pedestals on the sand. Everything you display earns gold in plain sight, and keeps earning while the app is shut. Tourists wander in to admire the good ones. ALSO • Plays offline; cloud save keeps your progress if you reinstall • No account, no sign-up, no email address • Seventeen languages • Free to play. Rewarded ads are always your choice, and there is never a full-screen ad in your first session.

Screenshots

Zombie Directive4 screens
Undersoil4 screens

Verdict

The call

The clearest difference is in-app purchases: Zombie Directive at none against Undersoil's 3. Zombie Directive also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.1). Undersoil's advantage is update cadence (daily vs weekly). On price and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. Undersoil sells 3 one-off in-app purchases. Zombie Directive asks for nothing beyond the download.

UpkeepUpdate frequency

Zombie Directive ships an update weekly, Undersoil daily. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard4 real differences Ā· 2 level
Zombie Directive versus Undersoil: the parameters behind the verdict, then further details
ParameterZombie DirectiveUndersoil
PriceFreeFree
Update frequencyWeeklyDaily — better
AdsNo — betterYes
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size60 MB70 MB
Age rating12+4+
DeveloperChengdu Sanhao Nianhua Technology Co., LtdConnor Burns

In-app purchases

None

Zombie Directive

No in-app purchases

3 purchases

Undersoil

One-time3
  • Gem Pouch$2.99
  • Chest of Gems$9.99
  • Vault of Gems$19.99

Questions

Is Zombie Directive free?
Zombie Directive is free to download, with no in-app purchases.
Is Undersoil free?
Undersoil is free to download, with in-app purchases available.
Do Zombie Directive or Undersoil have ads?
Undersoil shows ads; Zombie Directive does not.
Which is updated more often, Zombie Directive or Undersoil?
Zombie Directive ships an update weekly, and Undersoil daily. Most recently, Zombie Directive was updated on October 25, 2026 and Undersoil on October 24, 2026.

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