Bacteria Survivor vs Spring Kings
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Bacteria Survivor
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Bacteria Survivor A microscopic war is about to begin! Defend your base against relentless waves of bacteria in this tower defense strategy game. Build and connect living cells to create powerful defense networks. Unlock new bio-weapons, upgrade your arsenal, and evolve your strategy to fight increasingly dangerous bacterial mutations. Every decision matters, where you place your cells, how you link them, and which upgrades you choose can be the difference between survival and extinction. Can you outsmart the infection and become the ultimate Bacteria Survivor?
Spring Kings
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Spring Kings is a fast, physics-driven 1v1 castle-vs-castle battler where balance is everything and every launch can decide the match.
 Build your wobbling fortress on a giant spring, stack Tetris-style pieces to stabilize it, and then fling your entire castle to knock your opponent into ruin. Why you’ll love it - Real-time 1v1 matches focused on quick thinking and creative physics play. - Dynamic spring-mounted castles that tilt, sway, and react to every piece you place. - Build your loadout by choosing up to four structural or offensive pieces with unique behaviours. - Deep upgrades that improve stability, spring power, and special piece effects. - Ranked progression across increasingly challenging arenas with new hazards and layouts. - A workshop system that rewards upgrading your spring, castle core, and piece library. - Multiple viable strategies, from precision balancing to all-in power launches. Core gameplay - Place structural pieces (inspired by Tetris shapes) to stabilize your castle on the spring. - Charge and launch your wobbly stronghold toward the enemy to deal damage or disrupt their balance. - React to shifting weight, momentum, and spring tension as the battlefield changes. - Win by destroying the enemy’s castle core or knocking their structure completely off balance. Meta & progression - Upgrade your structural and offensive pieces to unlock new mechanics and higher impact. - Improve castle parts and spring strength to create specialized builds. - Climb competitive ladders, unlock new arenas, and discover new ways to out-balance and out-launch opponents. - Build smart, balance precisely, and master the perfect spring-powered strike.
Screenshots
Verdict
The clearest difference is ads: Spring Kings at none against Bacteria Survivor's shown. Bacteria Survivor's advantage is iOS requirement (13.0 vs 15.0). On price, 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.
| Parameter | Bacteria Survivor | Spring Kings |
|---|---|---|
| Price | Free | Free |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 106 MB | 94 MB |
| Age rating | 4+ | 9+ |
| Developer | Kiwert | Tornado Bear |
In-app purchases
Bacteria Survivor
No in-app purchases
Spring Kings
No in-app purchases
Questions
Is Bacteria Survivor free?
Is Spring Kings free?
Do Bacteria Survivor or Spring Kings have ads?
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