Overrun vs PolyCore TD
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Overrun
Defend your survivors against relentless zombie waves in a post-apocalyptic world. Build defenses, collect powerful items and weapons, and manage your team to survive the undead horde. Buy the game once and play forever with no ads or in-app purchases.
- Wave-based zombie defense
- Base building and upgrades
- Item and weapon collection
- Survivor management and leveling
- Strategic combat control
- Unlockable structures and items
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Overrun is zombie base defense where you also do the shooting. Build barricades, walls and turrets, then take a survivor and fight the waves yourself with twin-stick controls. You pay once and get the whole game: there are no ads, no in-app purchases and no currency packs. There are plenty of zombie games about shooting and plenty of zombie tower defense games about building. In Overrun you build the base, then defend it with a gun in your hand. Each wave makes survival harder than the last. Between waves you spend what your kills earned in the weapon shop, put up new defenses and level up your squad. Weapons, turrets and survivors all unlock by playing, never by paying, and all of it works offline. Barricades and walls are the heart of zombie base defense: they hold the horde back while turrets and traps thin it out. New structures unlock as you push further in, so the base you start with is not the base you finish with. Zombie games often leave survivors in the background. Here they join your squad, level up and carry weapons from an arsenal that grows as you play. When a wave gets close, you take direct control and aim the firepower where it is needed. You face feral runners, hulking demolishers, and radioactive and noxious zombies alongside the ordinary dead. In the middle of a wave you can call in grenades, airstrikes and first aid. Survival depends on the base you plan as much as on your aim. Overrun is a zombie tower defense game that plays fully offline, with no internet needed to play. Leaderboards and achievements are there on Game Center when you want them, and cloud save carries your progress and your purchase across your devices.
PolyCore TD
Defend a central turret against waves of geometric enemies in this arcade tower defense game. Earn XP to level up and choose from randomized upgrades to create unique combat strategies. Compete on global leaderboards and enjoy a synthwave aesthetic.
- Central turret defense
- Randomized upgrade system
- Roguelite progression
- 20 challenging missions
- Dynamic enemy types
- Global leaderboards
- Synthwave aesthetic
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Welcome to PolyCore TD, an intense arcade tower defense and survival game where your tactical choices determine your fate. Take control of a heavily armored central turret and fend off relentless waves of aggressive geometric shapes! As you destroy enemies, you will earn XP and level up. With every level, you get to choose from a randomized selection of powerful upgrades. Will you enhance your primary minigun with multi-shot, pierce, and ricochet rounds? Or will you equip your turret with heavy artillery like Mortars, Orbital Lasers, and Tesla Coils? Every run is unique! FEATURES: • EPIC ARSENAL: Unlock and upgrade 8 special attachments including Micro Missiles, Flamethrowers, Auto Shotguns, EMP Blasts, and Landmines. • ROGUELITE PROGRESSION: Create devastating synergies by combining stat boosts and weapon upgrades mid-battle. • 20 CHALLENGING MISSIONS: Battle through progressively harder stages, from basic "Initiation" to "The Singularity". • DYNAMIC ENEMIES: Face off against unique geometric foes with different behaviors—dashing Pentagons, zig-zagging Diamonds, tanky Octagons, and massive Star bosses. • MANUAL & AUTO-AIM: Take full control of the turret's rotation or toggle Auto-Aim to focus entirely on your upgrade strategy. • GLOBAL LEADERBOARDS: Accumulate your total lifetime score and compete on Game Center to prove you are the ultimate defender. • SYNTHWAVE VIBE: Experience minimalist, glowing graphics accompanied by an immersive, custom-generated synth soundtrack and explosive audio effects. Protect the core. Adapt your arsenal. Survive the swarm. Download PolyCore TD now!
Screenshots
Verdict
The clearest difference is price: PolyCore TD at Free against Overrun's $3.99. PolyCore TD also leads on rating (5.0 vs 4.6). Overrun's advantage is ratings volume (197 vs 1) and device support (4 vs 2). On ads and in-app purchases 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
PolyCore TD is free to download; Overrun costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PolyCore TD holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Overrun has 197 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Overrun | PolyCore TD |
|---|---|---|
| Price | $3.99 | Free — better |
| Rating | 4.6 (197 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 74.0% of reviews | — |
| Number of ratings | 197 — better | 1 |
| Update frequency | Every 26 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 379 MB | 6 MB |
| Age rating | 12+ | 4+ |
| Developer | Wildfire Games Ltd | Arte Soft Ltd |
Bugs and requests
Overrun
Reported bugs
5 issues- Game crashes or phone reboots on launch
- Players die on level 6 without apparent reason
- Game freezes or stays on dark screen at higher levels
- Zombies stop spawning mid-wave
- Automatic shotgun torrent upgrade does not unlock
Requested features
5 requests- Add a tutorial or help section
- Improve drag and drop functionality for items
- Adjustable zoom when controlling survivors
- Explain why team dies on level 6 without zombies
- Fix the automatic shotgun torrent upgrade not unlocking
PolyCore TD
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Overrun
No in-app purchases
PolyCore TD
No in-app purchases









