Mortigen vs Galactic Overkill
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Mortigen
Survive a zombie outbreak in a top-down shooter. Forge weapons from enemies, create powerful combos, and escape a procedurally generated lab. Face escalating hordes and a relentless hunter.
- Auto-fire combat
- Forge weapons from enemies
- Synergistic upgrade combos
- Procedurally generated labs
- Escalating enemy hordes
- Boss encounters
- Persistent roguelike progression
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The lab went dark. The infected are still moving. You're the last one in. You are Dr. Luisen — biochemist, sole survivor of Mortigen Biopharma, and the only person left who knows what the company released. The doors are sealed. Your old boss is hunting you. And every weapon you carry was built from the things trying to kill you. Mortigen is a top-down auto-fire survival shooter where you move, the guns fire, and every run is decided by the upgrades you pick before the next horde hits. If you love survivors-likes, bullet heaven runs, and zombie-apocalypse roguelites, this one is built for you. — AUTO-FIRE COMBAT — Focus on movement and positioning. Your weapons lock on and fire on their own. One thumb is enough to play, but mastering the spacing is what keeps you alive. — FORGE WEAPONS FROM THE DEAD — Bile, marrow, bone, nerve tissue, and volatile serum residues become field-grade weapons: chain lightning that arcs through crowds, piercing rounds that punch through lines, plague grenades aimed at the thickest cluster, and a damage aura that melts anything too close. — COMBOS THAT BREAK THE GAME — Upgrades stack and react. Frost Plague turns your Wind Cannon into a wall of ice. Storm Serum makes every grenade electrify the whole blast zone. Run both and everything you hit freezes and shocks at once. Every elemental upgrade enhances every weapon — find the build that snaps a run wide open. — THE STRANGER IS WATCHING — Something else escaped into the lab with you. At first it only watches. But every horde you survive, it heals, grows 15% stronger, and gets bolder — until it stops stalking and starts hunting. Kill it early, or pray you're ready when it comes for you. — RESCUE THE DOG — Somewhere in the annex, a dog is waiting. Find it and it fights at your side. But the Crimson Heart changes what you are — and the dog will know. — PROCEDURAL LABS, ESCALATING HORDES — Every run rebuilds the Mortigen annex into a fresh layout of corridors, rooms, secrets, and breakable equipment. Walkers, brutes, hunters, and lurkers unlock in waves. Spawn rates tighten. Boss encounters punctuate every horde — including the Dark Professor, your former superior, who still thinks, still plans, and still fires back. — 15 UPGRADES ACROSS 4 RARITY TIERS — From Bile Rounds and Frost Plague to the Corpse Crusher vehicle. Rare and legendary upgrades unlock as you hit trophy milestones across runs — roguelike progression that carries forward even when a run ends. — BUILT FOR REPLAY — • 11 enemy types, including 7 boss encounters with distinct AI • 23 trophies tied to persistent progression • An in-game encyclopedia of everything that's tried to kill you • Layered music that intensifies with every horde wave • One emergency revive per run — spend it or save it • Cosmetic outfits to earn as you survive — DESIGNED FOR iPHONE AND iPAD — • Auto-targeting for true one-handed play • Gamepad, keyboard, and touch with automatic priority detection • Localized in 13 languages • Play offline — no account required, your progress stays on your device • Optional online leaderboard for run scores WHAT PLAYERS GET A fast-loading, single-player survival shooter you can pick up for one run or lose an hour to. Clean controls. Real tension. A story worth finishing. The annex is sealed. The truth is inside. So are you.
Galactic Overkill
Engage in fast-paced, neon-infused space combat across multiple game modes. Compete in free-for-all PvP, survive escalating waves in co-op PvE, or battle for territory in Galactic Conquest. Customize your ship and progress through ranks with unlockable cosmetics.
- Fast-paced space arena shooter
- PvP free-for-all with bounty hunting
- PvE co-op wave survival
- Galactic Conquest territory control
- Customizable ships and cosmetics
- Daily rule-changing mutators
- Full controller and touch support
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GALACTIC OVERKILL is a fast, neon free-for-all space arena shooter. Drop into a live match in seconds — no account, no downloads to manage, no waiting, full controller support. PVP FREE-FOR-ALL Fly fast and claim the arena. Stack power-ups for fire rate, speed, and shields, level up mid-match to pick new weapons and upgrades, crack open loot drops, and hunt the BOUNTY — the top killer everyone wants dead. First to the kill target wins. PVE CO-OP WAVES Team up and survive escalating enemy waves on shared squad lives. Earn credits between fights, spend them at repair bays, perk stations, and the mystery box, and see how deep your squad can go. GALACTIC CONQUEST Teams fight for territory on a live sector grid. Capture, hold and push the front line — the fleet that owns the map wins, not the pilot with the most kills. PLAY WITH FRIENDS Create a private room and share an invite link — friends jump straight into your match, PvP or co-op. MADE FOR ARCADE PILOTS - Quick matches with players and bots, online around the clock - 8+ weapons: shotgun, railgun, homing, flak, ricochet and more - Daily mutators that remix the rules every day - A career of ranks, achievements, and unlockable cosmetics: ship shapes, trails, colors, and badges - Game Center leaderboards and achievements - Haptics, virtual joystick controls, and full iPad support - Full controller support, plus touch controls that work in portrait or landscape No ads. No pay-to-win — the optional Supporter Pack is cosmetics only. Progress is stored on your device; we don't collect your data.
Screenshots
Verdict
The clearest difference is review sentiment: Galactic Overkill at 100% against Mortigen's 0%. Galactic Overkill also leads on rating (5.0 vs 1.0) and ads (none vs shown). Mortigen's advantage is monetization model (ad-supported vs free with in-app purchases). On price, ratings volume, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Galactic Overkill holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews point the same way: 0% of Mortigen's written reviews are positive against 100% of Galactic Overkill's.
Mortigen ships an update fortnightly, Galactic Overkill every 4 days. The most recent releases landed on October 6, 2026 and September 21, 2026 respectively.
| Parameter | Mortigen | Galactic Overkill |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 1 | 2 — better |
| Update frequency | Fortnightly | Every 4 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 57 MB | 6 MB |
| Age rating | 12+ | 12+ |
| Developer | LUIS ENRIQUE RUIZ CABEZUDO | Bradley Chippi |
Customer experience
Mortigen
Galactic Overkill
In-app purchases
Mortigen
No in-app purchases
Galactic Overkill
No in-app purchases









