Shoot a stranger on sight on StalkerZ and the rules say you lose your whitelist immediately. Do the same thing on DayzUnderground and you have done nothing wrong — that community has published a page arguing that a no-KOS rule would strip out the unpredictability DayZ runs on. Both have been going for years, both are moderated by staff who take reports seriously, and both turn up on the same lists of the best DayZ RP servers.
That is the problem with the label. "RP" describes what a community hopes happens, not what it permits, and the gap between those two things is where newcomers get banned in their first week. The gap is measurable, though, and it sits in four clauses: how a fight is allowed to start, what your character may remember once one has killed you, how many people you are allowed to move with, and what the server demands before it lets you connect. Those four answers describe the game you are joining far better than the lore does.
One Word, Three Completely Different Games
DayZRP is the strict pole. Its ruleset, last revised on 23 July 2025, runs to seven numbered chapters covering behaviour, fair play, roleplay, hostilities, safe zones, base building and a weekly territory event. Hostility there is not something you do; it is something you declare. Every initiation has to be spoken aloud, aimed at specific people who can see who is threatening them, and given time to be answered.
DayzUnderground is the opposite pole and is blunt about it. Its position is that a rule against killing on sight removes an important part of the game, so it does not have one — no obligation to interact, no obligation to roleplay at all. The community calls this Organic Roleplay and concedes on its own site that it may not fit most people's definition of a roleplay server. What it enforces instead is proportionality: raids, base attacks and similar significant actions need an in-character reason, and the response is meant to fit the provocation rather than erase the other group.
StalkerZ sits past DayZRP on the strict side and adds a fiction on top. The server transplants DayZ into the STALKER universe — factions, exosuits, gas masks, an in-game PDA that has replaced Discord as the in-character wire — and its roleplay standard has teeth. Kill on sight is not a warning-and-strike offence there; the rules say it costs you the whitelist and carries a punishment on top.
Three communities, one word, and a spread wide enough that the habit earning you respect on one is a permanent ban on another.
Read the Initiation Clause Before the Pitch
DayZRP requires initiations to be clear, unambiguous and specific to everyone they are aimed at, delivered by voice rather than text, and given a reasonable window to react. They must be personal — you cannot initiate over a radio or a PA system on someone with no idea who is speaking. Vehicles get their own paragraph: you have to slow a moving vehicle first, using a roadblock or an obstacle already there, and initiating from one moving vehicle onto another is invalid outright. Ignore an initiation, or pull a weapon and run, and you have handed the initiator kill rights on you.
StalkerZ puts a number on the window — a minimum of ten seconds for the victim to answer demands before the aggressor may shoot — then closes the loophole that number invites. Knocking someone unconscious with a rifle butt counts as an initiation in its own right, and the robber may not quietly loot the body and leave before the victim wakes; the theft has to be played out while they are awake to see it. The robbery also has a floor. Unless you are a Renegade, you must leave your victim:
- a working gas mask and a working filter
- a working geiger counter
- a working gun and half the ammunition they had for it
- a reasonable number of bandages
- half their anti-radiation pills and half their B190 pills
- food and water
DayzUnderground's answer to all of this is that there is no clause. Nothing obliges anyone to speak before firing.
Which changes what a recording is for. On DayZRP and StalkerZ a firefight is a procedure with an audit trail, and video is the evidence that proves the procedure was followed — StalkerZ says plainly that staff will not act on a report without it. On DayzUnderground the same footage proves nothing, because nothing was owed.
The Timers That Keep Running After You Die
DayZRP's New Life Rule keeps you 250 metres from the spot for at least an hour and forbids your character from remembering the cause of death until every active kill right has expired. You may not involve yourself in the circumstances of your own death even after the timer runs out and the location changes. Server restarts, crashes, glitches, and dying alone with nobody watching do not reset any of it. StalkerZ's version is shorter and stranger: 30 minutes away from the area, and your character forgets not only the death but the 30 minutes leading up to it. You never go back for your body, for any reason. DayzUnderground, consistent with everything else about it, leaves this to you.
Kill rights run on their own clock. A DayZRP defender holds them for one hour or until their character dies, and can share them with anyone they have recently roleplayed with as well as every online member of an approved group. An attacker gets the same hour but can only share inside an approved group, so a solo attacker's rights cover nobody but themselves. That asymmetry is the whole design: starting a fight is cheap, and dragging friends into one you started is not.
Then there is the clock that catches people who think the fight is over. DayZRP's combat-logging rule keeps you online for at least 30 minutes after you break line of sight with anyone holding rights on you, or after you leave a raid, and logging out inside a bunker or the Root Cave is banned outright.
The rule most likely to surprise a newcomer is not a timer at all — it is that Discord is treated as a physical object. On DayZRP it may carry in-character information only while your character is actually holding a radio with a battery in it. Die, fall unconscious, get gagged, surrender, get handcuffed or lose the battery and the channel goes silent. Anything you say on it you must also say in-game, where everyone nearby hears it, and out-of-character text gets a .// prefix so it cannot be mistaken for speech. StalkerZ enforces the same double-mic requirement and went further, deleting its Discord-as-PDA channel entirely so the in-game PDA is the only in-character wire left.
Group Size Caps Tell You Who the Server Is For
Near the bottom of a rules page sits a number that predicts your evenings better than the roleplay section does: how many people are allowed to move together.
| Server | Largest legal group | Notable conditions |
|---|---|---|
| DayzUnderground | 15 active members per faction | "Active" means played in the last four weeks; 3 whitelisted members needed for official recognition; double-digit roaming, attacking or raiding is itself a rule break |
| StalkerZ | 8 in a faction patrol, 16 with one allied faction | Loners cap at 10; mercenaries exempt; max 3 exosuits per group and an exosuit wearer counts as two people |
| DayZRP | No published headcount | Attacker rights cannot be shared outside an approved group; airlocks max three doors deep; four vehicles per base |
StalkerZ adds a waiting period on top of the numbers: 72 hours of playtime on the server before you may join a faction at all, and another 48 if you leave one and start a new character. DayzUnderground names the behaviours as well as the cap — zerging, joint raids between two large groups, and drifting around in safety herds are all called out separately from the 15.
DayZRP's blank in that middle column is not an oversight, and it is the most instructive entry in the table. It does not cap headcount; it caps who may legally shoot. Because attacker rights stop at the boundary of an approved group, a fifty-strong friend list confers nothing on the person who started the fight, and everyone who joins in without rights is committing a bannable offence individually. One server limits the mob by counting it, the other by making most of it liable.
The Server Browser Sorts on Everything Except What Matters
The official DayZ launcher's community list filters on what a server broadcasts automatically: official or community, map, connected players, ping, and whether mods are loaded. Not one of those fields is the ruleset. Everything this article has been reading — initiation, kill rights, group caps — lives on a website and in a Discord, because there is nowhere in the server's metadata to put it. The browser is a latency tool that happens to list servers, not a discovery tool.
Third-party launchers and listing sites fill the gap with PVP, PVE, RolePlay and Vanilla tabs, first-person-only filters, region and language, full mod lists and player-count history. Use those to build a shortlist, not to reach a verdict: the category is self-reported, and the clearest illustration is the community that files itself under roleplay while telling you on its own site that it might not qualify.
Platform narrows the shortlist before you start. DayZ on Xbox and PlayStation is vanilla at the platform level with no mod support, so custom maps, the Expansion mod and total conversions like StalkerZ's are Steam PC territory. Console community servers run roleplay rules too, but those rules are enforced by admins reading reports rather than by code. On console you are choosing between administrations; on PC you are choosing between games.
The Whitelist Is Not Always the Hard Part
DayZRP gates the server itself — without a whitelist you cannot connect. Your Steam account has to be clean and long-standing, with no smurfs and no private profile, and any VAC ban on it must be at least 365 days old. You get one forum account, ever. The application proper is a character page: a full first and last name, a face-claim picture depicting a realistic human, a date of birth making the character at least 18, and a backstory of 500 characters or more that fits the server's lore. Applications are usually handled within 48 hours, and the community's Premium tiers include priority in that queue.
The step that actually stops people comes after the approval:
- Launch through Play Game, not Run DayZ Client — the latter starts the game with no mods and no parameters.
- In the launcher's Parameters tab, tick Profile name and type your character's name exactly as written on the character page, capital letters included. A mismatch is rejected at the door with a message telling you your game name matches no character.
- Connect by Direct Connect on port 2302, or find the server in the Community tab.
- Take the option that sets up the DLCs and mods before joining, and subscribe to anything missing when prompted.
DZSA and other third-party launchers are not supported there, which matters because they are the usual answer everywhere else.
DayzUnderground inverts the arrangement. The server is not the gated thing — its password is published in the rules for anyone who reads them, so you can play first and commit later. Membership is a separate application, usually reviewed inside a week though it can take longer, with no quiz and no character essay, and everyone gets an emailed answer. Writing that application with a chatbot is grounds for a permanent blacklist.
StalkerZ splits the difference: install the mod, point the launcher at your DayZ install, set your in-game name, search the server by name, let the mods load, and collect the password from the Discord. Two requirements are worth checking first, because neither is negotiable. You need a working microphone, since it is not a text RP server, and every hostile initiation has to be in English. One character, one realistic name, and your PDA name must match it.
All three publish their rules openly at dayzrp.com, dayzunderground.com and stalkerz.net, and all three revise them — DayZRP dates its page for exactly that reason. So before you write a backstory, open the current version and search it for one word: initiation. Read the paragraph around it. That paragraph is the game.