# How to Use MCCC in Sims 4

Source: https://mcccsims4.com/how-to-use

Last updated: 2026-11-10

MCCC has three menus. Click any **computer** and choose **MC Command Center** to change settings. Click a **Sim** and choose **MC Command Center** to run commands on that Sim. Click a Sim or a **mailbox** and choose **MC Cheats** for cheats. With no computer on the lot, open the console with Ctrl+Shift+C and type `mc_settings`.

## The three MCCC menus

| Click on | Menu | What is in it | Console shortcut |
| --- | --- | --- | --- |
| A computer | MC Command Center | Settings for every module you installed | `mc_settings` |
| A Sim | MC Command Center | Commands for that Sim: flags, CAS, moving households and more | `mccc First Last` |
| A Sim or a mailbox | MC Cheats | Cheats for one Sim or the whole world | `mc_cheats` |

- You do not Shift+click. The Shift+click menu belongs to the game's testing cheats or to other mods.
- Options change with the Sim. An active Sim, an NPC and a child each show a different list.
- Modules that only have settings, such as MC Woohoo, appear only on the computer. MC Cheats and MC Control only have commands, so they appear only on Sims (and the mailbox for cheats).

No menu at all? See [MCCC not working](/not-working).

## The computer menu: settings

Each module adds its own entry, so what you see depends on the files you kept. The ones most players open first:

- **MC Pregnancy:** story progression. Neighborhood Sims marry and have children on their own. The checks run at midnight on set days: Monday, Wednesday and Friday on Normal lifespan, Tuesday and Saturday on Long, and Saturday only with aging off.
- **MC Population:** moves homeless Sims into empty homes and sets move-in and move-out rules. **Allow Homeless Move-in** can be switched off.
- **MC Career:** difficulty for careers, school and university, and how fast homework gets done.
- **MC Tuner:** stops autonomous actions you are tired of, such as Mean and Mischief.
- **MC Cleaner and MC Dresser:** automatic cleanup of ghosts, married names and outfits, on a nightly schedule.

Most changes apply at once. Changes that need a game restart show an orange warning instead of the usual blue notification.

## The Sim menu: commands

- **Modify in CAS:** opens Create a Sim for that Sim. Deaderpool recommends it for households above 8 Sims, because the game's own CAS deletes Sims past 8.
- **Maintain Sim:** moves a Sim to another household.
- **Sim Flags:** per-Sim switches. **Never Cull** protects a Sim (or a family-tree ghost) from being deleted. **Freeze Career** keeps an NPC in their current job, or stops career progress for an active Sim.
- **MC CAS:** change name, voice, body details, fitness and favorite drink.
- **MC Cheats:** career promote and demote, reset career branch, change vacation days, and **Change Sim Mood**, which applies the strongest version of a mood for 2 hours.
- **MC Control:** gives an NPC an interaction to perform with another Sim on the lot. NPCs do not get every interaction, and they can still decide to leave.

## Console commands worth knowing

Open the console on a lot with `Ctrl`+`Shift`+`C` (Mac: `Cmd`+`Shift`+`C`).

| Command | What it does |
| --- | --- |
| `mc_help` | Lists every MCCC console command from the modules you have |
| `mc_settings` | Opens the settings menu anywhere |
| `mccc First Last` | Opens the Sim menu for any Sim, even one that is not on the lot |
| `sim_move First Last` | Moves a Sim to the active, another or a new household |
| `rel_set First Last First Last` | Sets the relationship between two Sims |
| `flag_sim First Last` | Opens the flag dialog for a Sim |
| `get_pop` | Counts the Sims in your world |

A surname with a space needs quotes: `mccc George "Van Winkle"`.

## Five things to set up first

- **Confirm it loaded.** When you load a household, a notification shows the MCCC version and each module.
- **Decide on story progression.** To stop random pregnancies, set **Pregnancy Percentage** to 0 under Pregnant Sim Selection in MC Pregnancy.
- **Protect the Sims you care about** with the Never Cull flag before you enable ghost cleanup.
- **Big households:** raise the household size setting, then add Sims with `sim_move` or Maintain Sim. The game's own tools stay capped at 8.
- **Delete modules you do not use.** Only `mc_cmd_center` is required. The [module picker](/#tool) lists what to keep.

Related: [changing a work outfit](/change-work-outfit) and [the MC Woohoo module](/mc-woohoo).

## FAQ

### How do I open MCCC in Sims 4?

Click a computer or a Sim and choose MC Command Center. Or open the console with Ctrl+Shift+C and type `mc_settings`.

### Why is there no MCCC option when I click my Sim?

Usually the MCCC version does not match your game, script mods are switched off, or the files sit more than one folder deep in Mods. See [the fixes](/not-working).

### Where is MC Cheats?

On Sims and on the mailbox, never on the computer. It has commands only, no settings.

### Do MCCC settings carry over to other saves?

Settings are stored in `mc_settings.cfg` in the MCCC folder, and Deaderpool says they carry over between versions as long as that file stays in place.