What MCCC is and how it handles relationships

MCCC (MC Command Center) is a mod that adds a command console to The Sims 4, letting you change almost anything about your game without loading separate menus. For relationships, MCCC lets you set friendship and romance levels between any two Sims instantly, or adjust them gradually over time. You type commands directly into the game rather than hunting through menus.

The mod works by intercepting commands you type while playing. Once installed, you press a keyboard shortcut (usually Ctrl + Shift + C) to open the command box, then type the relationship command you want. MCCC processes it and changes the relationship value right away. This is faster than using the base game's relationship panel, especially if you're managing multiple Sims or want to set exact numbers.

MCCC also tracks relationship history — it shows you what the current friendship and romance values are, so you know exactly what you're changing. The mod works alongside other mods and doesn't break saves, though like any mod it requires you to keep it updated when The Sims 4 patches release.

Key Takeaways

  • Open the command console in-game by pressing Ctrl + Shift + C, then type the MCCC relationship command for the two Sims you want to change.
  • The basic command structure is mc_relationship [Sim name] [Sim name] [friendship or romance value], where values range from -100 to 100.
  • You can set relationships to exact numbers (like 75 friendship) or use shortcuts like "friend" or "enemy" to set them to preset levels.
  • MCCC shows you the current relationship value before you change it, so you can see what you're working with and make smaller adjustments if needed.
  • The mod requires you to download it from the official source and place it in your Mods folder; it does not come with The Sims 4.

Installing MCCC before you can use relationship commands

MCCC is not built into The Sims 4 — you download it separately from the official MC Command Center website (deaderpoolmc.com). Download the latest version that matches your game version. The file is a .zip folder that you extract into your Mods folder, which is usually located at Documents > Electronic Arts > The Sims 4 > Mods.

After you place the MCCC folder in your Mods folder, launch The Sims 4 normally. The mod loads automatically if your game is set to allow script mods (check Options > Other > Enable Mods and Script Mods, and make sure both boxes are checked). You'll know MCCC is working when you press Ctrl + Shift + C in-game and a command box appears at the top of the screen.

If the command box doesn't appear, the most common reasons are that script mods are disabled in your settings, or the mod folder is in the wrong location. Move it directly into the Mods folder, not into a subfolder. If you've updated The Sims 4 recently, check the MC Command Center website for a new version of the mod — updates sometimes lag behind game patches.

The basic command structure for changing relationships

The core MCCC relationship command follows this pattern: mc_relationship [first Sim name] [second Sim name] [value or preset]. The first Sim name and second Sim name are the two Sims whose relationship you want to change. The value is a number from -100 to 100, where -100 is maximum dislike and 100 is maximum love.

For example, typing mc_relationship Alice Bob 50 sets Alice and Bob's friendship to 50. Typing mc_relationship Alice Bob -75 makes them enemies. You can also use word shortcuts instead of numbers: mc_relationship Alice Bob friend sets them to a friendly level, or mc_relationship Alice Bob enemy sets them to dislike each other.

If a Sim's name has a space in it, put the full name in quotes: mc_relationship "Alice Smith" "Bob Jones" 60. The command is case-insensitive, so Alice, alice, and ALICE all work the same way. After you type the command and press Enter, MCCC shows you the result — it tells you what the relationship was before and what it is now.

Setting friendship versus romance relationships separately

The Sims 4 tracks friendship and romance as two separate values. A Sim can have high friendship with someone but zero romance, or vice versa. MCCC lets you set each one independently using different commands. The friendship command is mc_relationship [Sim 1] [Sim 2] [value], which is what we covered above. The romance command is mc_relationship [Sim 1] [Sim 2] [value] romance — you add the word "romance" at the end.

For example, mc_relationship Alice Bob 80 sets their friendship to 80. Then mc_relationship Alice Bob 60 romance sets their romance to 60. Now Alice and Bob are close friends and also attracted to each other. You can set one to high and the other to low if you want a one-sided crush or a friendship without attraction.

The preset shortcuts work for romance too: mc_relationship Alice Bob lover romance sets them to a romantic relationship, or mc_relationship Alice Bob enemy romance removes all romantic interest. This is useful if you want to break up a couple without erasing their friendship, or make two Sims attracted to each other without them being friends yet.

Using preset relationship levels instead of numbers

If you don't want to think about exact numbers, MCCC includes preset shortcuts that set relationships to common levels. The presets for friendship are: acquaintance (low friendship), friend (medium friendship), best friend (high friendship), and enemy (negative friendship). For romance, the presets are: crush (one-sided attraction), lover (mutual romance), and enemy (mutual dislike).

Typing mc_relationship Alice Bob best friend is the same as typing mc_relationship Alice Bob 90 — it sets them to a high friendship level without you having to guess the exact number. This is faster if you just want to make two Sims close without fine-tuning the exact value. You can combine presets with the romance keyword: mc_relationship Alice Bob crush romance makes Bob attracted to Alice without setting a specific number.

The presets are useful for quick changes, but if you want precise control — like setting friendship to exactly 45 instead of 50 — use the number values instead. You can always check what the current relationship is by using the info command, which we cover in the next section.

Checking current relationship values before you change them

Before you change a relationship, you can see what it currently is using the info command: mc_relationship [Sim 1] [Sim 2] info. This shows you both the friendship and romance values for that pair. For example, mc_relationship Alice Bob info might tell you that Alice and Bob have 35 friendship and 10 romance. Now you know exactly what you're starting with.

This is helpful if you want to make small adjustments rather than overwriting the relationship completely. If they're already at 35 friendship and you want them closer, you might bump it to 60 instead of setting it to 90. The info command also works if you're not sure whether two Sims have met yet — if they haven't, the command tells you there's no relationship to display.

You can also use the info command to check relationships between Sims you're not currently playing. This is useful in households with multiple Sims, or if you want to see how relationships have developed between Sims in different households without switching to play them.

Common mistakes and how to fix them

The most common mistake is typing a Sim's name wrong. If you type mc_relationship Alicia Bob 50 but the Sim's name is actually Alice, the command won't work and MCCC will tell you the Sim doesn't exist. Check the exact spelling and capitalization in your game — if the Sim's name has a space, remember to use quotes around it.

Another mistake is forgetting the romance keyword when you mean to set romance instead of friendship. If you type mc_relationship Alice Bob 80, you're setting friendship to 80, not romance. If you want romance, you have to type mc_relationship Alice Bob 80 romance. The command doesn't assume you mean romance just because the number is high.

If the command box doesn't appear when you press Ctrl + Shift + C, the mod isn't loaded. Check that MCCC is in your Mods folder (not in a subfolder), that script mods are enabled in your game settings, and that you've restarted the game after installing the mod. If you've recently updated The Sims 4, download the latest version of MCCC from the official website — older versions sometimes stop working after patches.

Frequently Asked Questions

Can I change a relationship between two Sims who haven't met yet?

Yes. MCCC creates the relationship if it doesn't exist. If Alice and Bob have never met, typing mc_relationship Alice Bob 50 creates a friendship between them at level 50, even though they haven't interacted in-game. This is useful if you want to set up pre-existing relationships in a new household without playing through all the introductions.

What happens if I set a relationship to 100 or -100?

Setting a relationship to 100 (maximum positive) or -100 (maximum negative) locks it at that extreme. The Sims will act as though they have the strongest possible bond or hatred. In practice, 90 to 100 and -90 to -100 look the same in-game, so you don't need to hit the exact extremes unless you want to be precise.

Can I change relationships for Sims in other households without switching to play them?

Yes. MCCC works on any Sim in your save file, regardless of which household you're currently playing. Type the command with the two Sim names and it changes their relationship instantly, even if they're in different households or off-world. This is useful for managing relationships across your entire save without loading each household separately.

Does changing a relationship with MCCC trigger in-game events or notifications?

No. Changing a relationship with MCCC bypasses the normal in-game systems, so the Sims won't get notifications, won't react emotionally, and won't remember how the relationship changed. To them, the relationship just is what it is now. If you want the change to feel more natural, you can lower the value slightly and let the Sims interact to build it up the rest of the way.

What's the difference between setting a relationship to 0 and deleting it?

Setting a relationship to 0 means the Sims are neutral — they have no friendship or romance, but they've met. Deleting a relationship (which you can do with a separate MCCC command) makes it as though they've never met at all. For most purposes, 0 is what you want — it's the baseline neutral state. You only need to delete a relationship if you want to erase the history that they've ever interacted.