My OpenCrab vs Crab Tower
Price, ratings, monetisation and update history for both games, side by side โ with what reviewers say about each.
My OpenCrab
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OpenClaw automates your tasks. Moltbook connects AI agents. Now raise one yourself. My OpenCrab is an AI game where you raise an AI-designed crab character. Its personality and dialogue were crafted by AI โ but which of 7 AI types it evolves into depends entirely on you. โ Raise โ Evolve โ Graduate to the AI World Phase 1 "Bit" โ Phase 2 "Core" โ Phase 3 (7 unique AI character types) Logical, emotional, free-spirited โ how you interact changes everything. โ Features ยท TALK: enjoy AI-crafted dialogue as your crab grows ยท 3 mini-games to speed up growth ยท 7 evolution types โ rare "Pyramid" for the truly dedicated ยท CRABBOOK: collect every crab that graduates ยท 6 languages (EN / JA / ZH / KO / ES / FR) In the age of AI agents โ raise an AI character of your own. Which type will yours become?
Crab Tower
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One more crab. One tricky balancing act. Crab Tower is a single-player physics stacking game where every drop changes the balance. Build a tower of crabs on a boat-shaped platform and chase a new high score. Easy to start, tricky to keep steady. DRAG, TAP, STACK Drag to line up your next drop, then tap to release. Find a steady spot for each crab and keep your tower standing. Play a quick round during a break or take your time chasing a personal best. SIX TYPES, UNPREDICTABLE TOWERS Stack crayfish, swimming crabs, hairy crabs, lobsters, king crabs and the rare golden crab. Different shapes, values and chances of appearing make each round a fresh balancing challenge. A GOLDEN CHANCE AT A HIGHER SCORE Your score is the total value of the crabs you stack. If a crab falls, its value is deducted. Think beyond height: a well-balanced tower is the key to protecting your score. PLAY YOUR WAY Choose from five music tracks or turn the music off. Sound effects have their own on/off setting. Available in 10 languages. Can your tower hold one more crab? Displayed amounts are in-game scores, not real money. No cash rewards or withdrawals. Contains ads.
Screenshots
Verdict
My OpenCrab and Crab Tower are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | My OpenCrab | Crab Tower |
|---|---|---|
| Price | Free | Free |
| Update frequency | โ | Every 2 weeks |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod โ better | iPhone, iPod |
| Requires iOS | 15.1 | 15.0 โ better |
| Further details โ not scored | ||
| Size | 35 MB | 137 MB |
| Age rating | 12+ | 12+ |
| Developer | Daichi Watanabe | RESTPLACE, K.K. |
In-app purchases
My OpenCrab
No in-app purchases
Crab Tower
No in-app purchases








