Immunity vs Space Relay
Price, ratings, monetisation and update history for both games, side by side ā with what reviewers say about each.
Immunity
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YOU ARE THE LAST LINE OF DEFENSE. Play as a macrophage ā the immune system's most powerful cell ā and fight through 10 zones of the human body in this biology-based action roguelite. THE BODY IS UNDER ATTACK. From the Lymph Node to the Heart, real pathogens have invaded every organ. Bacteria. Parasites. Viruses. Kidney stones. Blood clots. Each zone brings new enemies grounded in actual cell biology ā every creature, ability, and mechanic is based on how the immune system really works. BUILD YOUR IMMUNE RESPONSE. Every run is different. Collect 27+ adaptations and abilities as you progress ā Cytokine Burst, Fever Mode, Phagocytosis, Neutrophil Swarm, Complement Cascade, and more. Stack upgrades. Build synergies. Adapt to every threat. 10 ZONES. 10 BOSSES. āø Lymph Node ā face the Dormant Sentinel āø Lungs ā battle the Pneumonia Mass āø Bloodstream ā confront the Sepsis Herald āø Stomach ā destroy H. Pylori Overlord āø Brain ā survive the Neuroinflammation Prime āø Liver ā fight the Cirrhosis Node āø Small Intestine ā stop the Tapeworm Queen āø Large Intestine ā dismantle the Bacterial Megacolony āø Kidneys ā shatter the Nephrolithic Golem āø Heart ā expel the Myocardial Invader THEN FACE THE FINAL BOSS. Cancer. The body's own cells gone wrong. A corrupted mirror of yourself. Three phases. Endless copies. No easy victory. ROGUELITE THAT RESPECTS YOUR TIME. āø Quick runs ā each zone takes minutes āø Permanent upgrades carry between runs āø No energy systems. No paywalls. Play anytime. āø Every run feels different ā 27+ items, abilities, and upgrades āø One more run feeling that turns five minutes into an hour LEARN WHILE YOU PLAY. Every enemy is a real pathogen. Every ability is a real immune response. Immunity is the only roguelite built on actual immunology ā making it genuinely educational without ever feeling like homework. āø E. coli that groups and reforms āø Fibrin clots that regenerate HP āø Calcium oxalate crystals with mineral armor āø Platelet swarms that recruit more platelets āø A Cancer boss that proliferates when damaged Can the immune system hold?
Space Relay
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Orbit Relay is a fast, one-touch space runner about momentum, gravity, and how far you can push before the void wins. Pilot a rocket through an endless chain of planets. Tap the left or right side of the screen to bank and fire a short thrust burst - then let gravity do the rest. Ride orbital arcs, slingshot past worlds, and chain clever paths to push deeper into space. The farther you travel from your home planet, the higher your score climbs. Easy to pick up. Hard to master. Every burst counts. After each thrust, your engine needs a cooldown - so timing matters as much as courage. Thread tight gaps, skim planet gravity wells, and keep your speed without drifting too far into the cold dark. Risk vs. reward ⢠Crash into a planet - game over. ⢠Drift too far into empty space - game over. ⢠Play it safe, or gamble on one more relay toward a personal best. Compete globally Qualify for the TOP-10 leaderboard, save your nickname, and chase a higher rank run after run. Built for quick sessions ⢠One-finger controls ⢠Procedural planet routes - no two runs feel quite the same ⢠Atmospheric starfield, retro-inspired visuals, and optional CRT-style effects ⢠Available in 12 languages How far can you go before gravity - or the void - pulls you back? Download Orbit Relay and start your next run.
Screenshots
Verdict
The clearest difference is ads: Immunity at none against Space Relay's shown. On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Immunity | Space Relay |
|---|---|---|
| Price | Free | Free |
| Ads | No ā better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.3 | 13.0 ā better |
| Further details ā not scored | ||
| Size | 343 MB | 68 MB |
| Age rating | 4+ | 12+ |
| Developer | DALTON SANDOR DRISCOLL | Anna Pustovaia |
In-app purchases
Immunity
No in-app purchases
Space Relay
No in-app purchases









