Mahjong Demon vs Astrea
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Mahjong Demon
Experience the strategic depth of Japanese Mahjong with this digital adaptation. Learn to form winning hands, manage discards, and understand the nuances of "Chi," "Pon," and "Kan" to achieve victory. Master the game's unique scoring and hand requirements.
- Japanese Mahjong rules
- Tile selection slider
- Discard functionality
- Forming Melds and Pairs
- Understanding "Chi," "Pon," and "Kan"
- Reach mechanic for scoring
- Lost Hand rules
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This is a Mahjong game of the Japanese style rule. The Slider that exists under the screen is moved, and the tile is selected. And, the Slider is done in the tap and the tile is discard. Mahjong is the game to finish four Melds and one Pairs. Example: [1, 2, 3][6, 6, 6][6, 7, 8][N, N, N][4, 4] However, there is a hand not approved when Chi, Pon, and Open Kan. Please note whether there is a hand when you do 1 and 9 in Chi and Pon. In the rule of the japanese mahjong, one or more hands are necessary. The hand can be made by paying 1,000 points and doing Reach. However, when Chi, Pon, and Open Kan are done, Reach cannot be done. If it is a closed hand, high point will be obtained. About Lost Hand. A hand that is Waiting, but cannot be won off someone else's discard due to the fact that the owner of the hand already threw a winning tile in their own discard. Lost Hand if one in all winning tiles are here even if discard doesn't do the tile which it wants to do. But, self-draw is possible even with Lost Hand. The knack is that Ron is never done by the other party. Ron is never done with the tile that does Discard. Please reason the Hand from other party's Discard and win.
Astrea
This roguelike deckbuilder replaces cards with dice, featuring a unique dual damage system of Purification and Corruption. Customize your dice, choose from six distinct Oracles, and discover over 170 Blessings to alter your tactics.
- Unique dual damage system (Purification vs. Corruption)
- Dynamic health bar with attached skills
- Dice pool building with over 350 dice
- Dice customization with new actions
- Six unique Oracles with distinct playstyles
- Over 170 modifying Blessings (Star and Black Hole)
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Astrea is a DICE-deck-building roguelike that flips the script on deckbuilders by using dice instead of cards and an unique dual “damage” system: Purification vs Corruption. Features • Unique dual “damage” system: Purification vs Corruption - In Astrea there is a new type of “damage” system. Purification can be used to damage enemies or heal yourself. On the other hand, corruption can be used to damage yourself or heal the enemies. Pacify enemies through Purification, or Corrupt yourself to unleash abilities that help tip the scales. • Dynamic Health Bar system - With skills attached to your health bar, you can take Corruption to enable these skills and unleash powerful abilities. But be careful, if you take too much Corruption you will be consumed by it. • Not cards, but dice! - Build a dice pool that fits your playstyle. Choose from over 350 dice and three dice types; reliably safe, perfectly balanced, or powerfully risky. A dice type system designed with high-risk, high-reward in its core. • Customize your dice - Forge your fate by editing die faces with new actions, tipping the odds of powerful results into your favor. • Choose from Six Brave Oracles - Each possessing their own unique dice sets, abilities, and playstyles. From ingenious spellcasters to brutish berserkers, whether you like beating the opponent into submission or outsmarting them with clever plays, there’s an oracle for you. • Uncover over 170 modifying Blessings - Imbue your Oracle with unique passives yielding potent effects that changes up your fundamental tactics. Choose between Star Blessings, passive effects with lower power, or Black Hole Blessings, powerful passive effects with a drawback.
Screenshots
Verdict
The clearest difference is rating: Mahjong Demon at 4.8 against Astrea's 4.3. Mahjong Demon also leads on price ($1.99 vs $5.99) and ratings volume (85 vs 20). Astrea's advantage is chart position (#35 vs #106) and iOS requirement (13.0 vs 15.0). On review sentiment, update cadence, 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
Mahjong Demon costs $1.99 and Astrea $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Mahjong Demon holds the better App Store score, 4.8 against 4.3. Both are backed by a comparable volume of ratings — 85 and 20 respectively. Written reviews split almost evenly too, at 73% and 74% positive.
Both ship on a similar rhythm, roughly every 6 weeks. Both last shipped on September 22, 2026.
| Parameter | Mahjong Demon | Astrea |
|---|---|---|
| Price | $1.99 — better | $5.99 |
| Rating | 4.8 (85 ratings) — better | 4.3 (20 ratings) |
| Positive reviews | 72.9% of reviews | 73.5% of reviews — better |
| Number of ratings | 85 — better | 20 |
| Update frequency | Every 6 weeks | Every 6 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | #106 | #35 — better |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 123 MB | 711 MB |
| Age rating | 17+ | 9+ |
| Developer | NUTRACTOR | Akupara Games |
Customer experience
Mahjong Demon
Astrea
In-app purchases
Mahjong Demon
No in-app purchases
Astrea
No in-app purchases








