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Milky Way Idle key art Milky Way Idle logoMilky Way Idle
SimpleMMO logoSimpleMMO
Comparison

Milky Way Idle vs SimpleMMO

Both games run a player market with a cut on every sale. Nearly everything around that market is different.

Milky Way Idle 4 tools here SimpleMMO 2 tools here Checked

Screenshots

Milky Way Idle
Milky Way Idle tutorial: Purple the cow introduces milking to a new playerMilky Way Idle foraging: the Asteroid Belt action with its outputs and drop rates
© Milky Way Idle (cheze)
SimpleMMO
SimpleMMO Google Play screenshot: Travel the world, the dark-theme travel screen with a step buttonSimpleMMO Google Play screenshot: Trade with players, the market listing items with gold prices
© Galahad Creative

Side by side

Topic Milky Way Idle Tools live SimpleMMO Tools live
How you level Not verified — left blank rather than estimated. One character level: clearing level n costs 50 × n XP, so level 345 needs 17,250. Levels run into the millions — v12.87 added level-up announcements at 25,000 and 1,000,000+. Most of it comes from a travel button: each press is one step and can pay gold or XP from 1 up to your level, an item or a fight.345
Skills and caps 11 skills, Combat among them, per the game's wiki.1 Four gathering skills — woodcutting, mining, fishing and treasure hunting — each with its own level and tool, plus crafting, which turns the materials into items. Professions replaced jobs in v12.51 and give a stat bonus that grows with rank; v12.86 raised profession XP by 15%.674
Combat Combat is one of the 11 skills. How fights, parties and dungeons resolve is not something we have verified.1 Turn-based and decided by three stats: max hit is Strength minus 9/11 of the target's Defence (floor 20), and hit chance is 3.5 × Dexterity ÷ Defence. A special attack costs 1 energy for +25% Strength that turn. Every Monday 12 world bosses and 1 god boss spawn; helping kill one pays 8, 12 or 16 times your level in XP.89
Economy and market A marketplace of player buy and sell listings, taxed at a flat 2% on a sale (18% on Cowbell Bags).2 A player market that takes a 3.5% fee once an item sells, plus 2.5% if you buy with gold straight from the bank. Keys and Diamond Shards cannot be listed. The About page claims over 8,000 pieces of loot.1011
Clans and guilds Not verified — left blank rather than estimated. Guilds with their own level, capped at 100 and earned through raids, tasks and wars; a guild can opt out of wars by going PvE-only. Founding one costs 15,000,000 gold or 50 diamonds. The About page counts over 1,000 guilds.1211
Where you play Not verified — left blank rather than estimated. Browser at web.simple-mmo.com, plus iOS and Android apps, from Galahad Creative, the studio behind IdleMMO. The home page claims over 1,000,000 players; the About page says over 400,000.131114
Tools on this site

The read

The market is the closest point. Milky Way Idle taxes a sale at a flat 2% (18% on Cowbell Bags). SimpleMMO takes 3.5% once an item sells, and 2.5% more if you buy with gold straight from the bank. On an ordinary item SimpleMMO's cut is the bigger one before the bank fee is even counted, so a flip that works in one game can lose money in the other.

Progression is not built the same way. Milky Way Idle's wiki lists 11 skills with Combat among them; we have not verified its caps. SimpleMMO centres on one character level, 50 × n XP to clear level n, with four gathering skills and crafting on the side and professions for a stat bonus that grows with rank.

Combat is documented for SimpleMMO and not, on our sources, for Milky Way Idle. SimpleMMO's formula runs on Strength, Defence and Dexterity, and 12 world bosses plus 1 god boss spawn each Monday. Milky Way Idle's combat is one of its 11 skills and nothing more is verified. On this site Milky Way Idle has an item database, a market board and tax-aware calculators; SimpleMMO has combat and XP calculators and written guides.

Questions

How many skills does Milky Way Idle have compared with SimpleMMO?

Milky Way Idle: 11 skills, Combat among them, per the game's wiki. SimpleMMO: Four gathering skills — woodcutting, mining, fishing and treasure hunting — each with its own level and tool, plus crafting, which turns the materials into items. Professions replaced jobs in v12.51 and give a stat bonus that grows with rank; v12.86 raised profession XP by 15%.

Can you trade with other players in Milky Way Idle and SimpleMMO?

Milky Way Idle: A marketplace of player buy and sell listings, taxed at a flat 2% on a sale (18% on Cowbell Bags). SimpleMMO: A player market that takes a 3.5% fee once an item sells, plus 2.5% if you buy with gold straight from the bank. Keys and Diamond Shards cannot be listed. The About page claims over 8,000 pieces of loot.

How does combat work in Milky Way Idle and SimpleMMO?

Milky Way Idle: Combat is one of the 11 skills. How fights, parties and dungeons resolve is not something we have verified. SimpleMMO: Turn-based and decided by three stats: max hit is Strength minus 9/11 of the target's Defence (floor 20), and hit chance is 3.5 × Dexterity ÷ Defence. A special attack costs 1 energy for +25% Strength that turn. Every Monday 12 world bosses and 1 god boss spawn; helping kill one pays 8, 12 or 16 times your level in XP.

Does this site have tools for Milky Way Idle and SimpleMMO?

Milky Way Idle: 4 tools — Item database, Market board, Calculators, Written guides. SimpleMMO: 2 tools — Written guides, Combat and XP calculators.

Sources

  1. 1 Milky Way Idle wiki, Skills, read 2026-08-14.
  2. 2 Milky Way Idle wiki, Marketplace, read 2026-08-14.
  3. 3 SimpleMMO community wiki, Experience (community-maintained, may be outdated), read 2026-10-01.
  4. 4 SimpleMMO official update notes (v12.80 to v12.87), read 2026-10-01.
  5. 5 SimpleMMO community wiki, Travel (community-maintained, may be outdated), read 2026-10-01.
  6. 6 SimpleMMO community wiki, Skills (community-maintained, may be outdated), read 2026-10-01.
  7. 7 SimpleMMO community wiki, Jobs (community-maintained; records the v12.51 switch to professions, rest of the page is outdated), read 2026-10-01.
  8. 8 SimpleMMO community wiki, Stats (community-maintained, may be outdated), read 2026-10-01.
  9. 9 SimpleMMO community wiki, World Bosses (community-maintained, may be outdated), read 2026-10-01.
  10. 10 SimpleMMO community wiki, Market (community-maintained, may be outdated), read 2026-10-01.
  11. 11 SimpleMMO official About page, read 2026-10-01.
  12. 12 SimpleMMO community wiki, Guilds (community-maintained, may be outdated), read 2026-10-01.
  13. 13 SimpleMMO official site (home page and its app links), read 2026-10-01.
  14. 14 IdleMMO official site, read 2026-10-01.

Game names, logos and artwork belong to their creators (Milky Way Idle: Milky Way Idle (cheze); SimpleMMO: Galahad Creative). IdleMMO Tools is an unofficial fan site.

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