RPG MO vs Undercity
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
RPG MO
Embark on an addictive online multiplayer role-playing adventure. Fight monsters, master 19 diverse skills, and dedicate your time to this retro-style MMORPG. Designed for adult gamers but enjoyable for younger players too.
- Online multiplayer role-playing
- Monster combat
- 19 distinct skills to master
- Retro MMORPG style
- Time and dedication focused gameplay
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RPG MO is an online multiplayer role-playing game that requires time and dedication. The game is created with adult gamers in mind but younger players can also enjoy it. Overall it is a simple yet addictive game where you can fight monsters and try out 19 different skills.
Undercity
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You can add new players to the dungeon and edit them. Tapping on the name in the dungeon view will give the selected player initiative. Players can be dragged around from one room to the other.
Screenshots
Verdict
The clearest difference is in-app purchases: Undercity at none against RPG MO's 6. RPG MO's advantage is device support (4 vs 2) and iOS requirement (14.0 vs 18.0). On price, update cadence and ads 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. RPG MO sells 6 one-off in-app purchases. Undercity asks for nothing beyond the download.
Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 14, 2026 and October 3, 2026 respectively.
| Parameter | RPG MO | Undercity |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (34 ratings) — better | — |
| Positive reviews | 65.0% of reviews | — |
| Number of ratings | 34 — better | — |
| Update frequency | Every 2 months | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 14.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 154 MB | 20 MB |
| Age rating | 12+ | 9+ |
| Developer | Margus Ojanurme | Michael Skrynski |
In-app purchases
RPG MO
- 500 MOS$4.99
- 1250 MOS$11.99
- 2100 MOS$19.99
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- 3200 MOS$29.99
- 5500 MOS + 2x EXP potion$49.99
- 11250 MOS + two 2x EXP potions$99.99
Undercity
No in-app purchases
