The game contains countless mechanics which are fully opaque yet punish the player for not knowing them. This guide provides an overview of these mechanics. Overview You haven't heard the Tragedy of X4 the Opaque? I thought not. It's not a story Egosoft would tell you. It's a modder legend. Modders are so powerful and so wise they can force X4 to reveal information. They have such a knowledge of the game, they can even play it without Google. Modding is a pathway to many abilities some consider to be unnatural. It is possible to learn this power, but not from gameplay. X4 contains countless mechanics which are fully opaque yet punish the player for not knowing them. These mechanics can only be gleaned by either reading the game code or learning it from someone who has read it. Simulation Modes High-attention is the current player/camera zone and its neighbours. Zones are at the maximum case cube sections of space that extend up to 50km in every axis direction. The closest zone center to an object determines the zone it is considered to be inside. If an object leaves the cube without entering a new zone it creates a new temporary zone at its current position and this zone is deleted when all objects have left it. The system only tracks the location of its neighbours rather than direct distance checks. High-attention therefore may vary between 50km and 150km in a bell distribution. For a reasonable and easily understandable approximation, this concept can be simplified to a bubble with a radius of 100km centered on the player/camera. The "camera" includes the location of the Live Stream and an NPC when opening communications with them. Everything within these bubbles is "high-attention" (HA), which is fully simulated. Everything outside the bubble switches to a much more simplistic "low-attention" (LA) simulation. "In-sector" (IS) and "Out of Sector" (OOS) are misnomers using terminology from previous games. They had loading screens between each sector, while X4 creates the above bubble instead. The IS / OOS terminology should be replaced as it is misleading to new players. The same situation has very different results depending on the simulation mode. These differences are so vast that each mode functions like an entirely different game. For instance: Mining — Individual asteroids are not simulated and collision does not exist in LA. Simplified collection and movement therefore makes LA mining significantly more efficient. Combat — Ship turrets only have a 30% chance to fire in LA. Ships heavily relying on turrets, like all Xenon destroyers, consequently have significantly reduced DPS in LA. The difference between their combat effectiveness in LA vs HA is night and day. I recommend the below mod to solve this specific problem. Similarly, very effective HA weapons may become useless in LA, or vice versa. It is truly like playing different games. The LA Combat page of my other Steam Guide provides more information for combat. Known mitigations: OOS Turret Fire Chance Change — Reduces Xenon's critical weakness in low-attention. Mining Penalty A hidden mechanic which checks if your mining ships are within 40km of a resource probe owned by you and silently applies a 50% penalty to the final result of the efficiency calculation if they are not. Players are unknowingly hamstrung by this mechanic as there is literally no way to learn it exists in-game. Vanilla has no automatic method to deploy resource probes, so it is extremely tedious to avoid the penalty without mods. If you know the penalty exists, there is no indication if or when it is applied to your ships. The range of the penalty and probe also do not match. The penalty range is 40km, yet the displayed probe radius is ~90km. You receive the penalty while being inside most of the range. Even when using a mod like Satellite Service to automatically blanket the entire sector with probes, it is still possible to receive this penalty because the probes are deployed on one plane. You would therefore receive the penalty if the ship moves >40km above or below the probes. Covering the entire sector with probes also reduces performance and visually clutters the UI. A ship with empty service crew slots further reduces efficiency because they contribute 0 to the combined skill value. Marines do not contribute their skill. Skill value is used for everything and has an enormous impact. Always keep your ships at full service crew and never use marines unless you are actively boarding. Vanilla's inclusion of marines in preset loadouts is a noob trap. It implies marines are necessary, yet in actuality it significantly reduces the ship's performance. Known mitigations: Vanilla — Manually spamming probes. Satellite Service — Automatically deploys probes, greatly reducing tedium. No Mining Penalty — Directly removes the penalty. SETA Player Rank Decay Using SETA while AFK triggers a hidden penalty which causes your player rank points to decay. Faction reputation and player ranks are separate systems. Player ranks are only used for the following Steam Achievements: Captain of Industry & Combat Pro X-Treme Trader & X-Treme Fighter Earning the X-Treme achievements is functionally impossible due to the insane logarithmic scaling, but this hidden penalty likely makes it literally impossible. I don't know the specifics of this penalty because the code is not available to modders. Source of knowledge: Developer confirmation on Steam discussion page. Known mitigations: Simulating mouse input to prevent AFK detection. Crystal Nerf Mining a valuable crystal immediately downgrades all other crystals in the sector into the least valuable type and starts a hidden timer to prevent any other crystals from spawning. The code documentation states: Cooldown on "valuable" drops, defined in minutes. If set, collecting one of these will prevent new "valuable" spawns for the defined duration. Entries without a cooldown are considered "not valuable" for the purposes of this cooldown. Egosoft introduced this penalty to discourage crystal mining, as despite being incredibly boring, it became the early game meta due to being easy and insanely profitable. Nerfing it was a good idea in theory, but their chosen implementation just moved the meta to another badly balanced mechanic and actively harmed players by punishing them with a mechanic they can't know exists. It is particularly reckless because there are so many guides in the community encouraging crystal mining. Players could assume it's outdated and no longer relevant, but Egosoft hiding the nerf greatly reduces their chance of discovering it and accordingly wastes their time. I don't recommend mining crystals in either vanilla or with the below mods, but you're free to do as you want in your sandbox. Known mitigations: Crystal Rarities — Removes the hidden timer and buffs the spawns; very cheaty. Disable crystal cooldown timer — Removes the hidden timer Kha'ak Torture Mining activity accumulates a hidden "heat" value which attracts the Kha'ak. Player-owned mining ships build twice as much heat as NPC-owned miners. Kha'ak "teleport" to any location without the need of travelling through gates. They actually spawn out of thin air, typically right on top of the offending miner's head. If your miners are under constant attack, it is likely an Outpost has spawned in the sector. Outposts spawn ships within the same sector. Outposts spawn within 3 jumps of a Hive. Generally the Outpost spawns ~400km away from the center of the sector, which is likely beyond the border. However, the hex will zoom out and rescale to accommodate crossing it. Destroy the Hive before the Outpost. Destroying them will require several destroyers to do it in a reasonable timeframe due to their absurd health pool. Hives can respawn after 96 hours. Outposts can respawn after 48 hours. The timer is much shorter if player-owned ships do not destroy the station. They do not respawn at the same location within the sector. The Hives can only spawn in 9 specific sectors, but only 6 of these sectors can contain a Hive. Since Hives can only exist in 6 of 9 sectors, destroying a Hive might move it to another sector if the local mining activity of the new sector is high enough when it respawns. The 9 specific sectors are: Antigone Memorial Black Hole Sun V Company Regard Heretic's End Lasting Vengeance Matrix #451 Open Market Pious Mists IV Silent Witness XII Although it's easy to keep them suppressed with the above knowledge, the entire system is hugely unfun. Kha'ak spawning out of thin air leaves little room for counterplay aside from using L miners. It's also a slog to clear the nests since they spawn so far away and have very little DPS yet enormous health pools. Kha'ak design also disproportionally harms new players. It is impossible to learn in-game, yet the solution is trivially easy once you learn it from external sources. The station's absurd health pool also punishes them with extreme tedium, as they will probably only own a single destroyer at best when it first spawns. Known mitigation: Knowledge Spawn Begone — Changes Kha'ak spawn mechanics to be less frustrating. Kha'ak Finder — Automatically finds Kha'ak stations. No Kha'ak Torture — Removes Kha'ak from the game. Bail Chance A ship's crew only has a chance to bail once every 30 seconds if their ship's hull and shield are under 75% and 20% respectively. There is a hidden penalty to the bail chance if your ship has higher maximum hull than your target. The ideal capture method is to damage the ship to 74% hull and then keep tickling its shields to keep them under 20% without damaging the hull again, while using a ship which has a maximum hull value equal to or less than your target. For non-Xenon ships, scan the ship first, then check the crew number every 30 seconds. Once it has 4 crew, the next successful bail roll will cause all remaining crew to abandon ship, thus allowing you to claim the ship. Claiming it transfers ownership to you. Claiming bailed S and M ships with marines destroys non-mandatory equipment with the chance scaled to their boarding skill. Players must endure the tedium of personally claiming every ship to avoid this hidden penalty. I strongly recommend removing this mechanic with the below mod. Exact formula: Vanilla rolls a bail check when a ship receives damage, limited to once every 30 seconds and if the target is below 75% hull and 20% shields. Base eject chance is a range of 23-46%: inversely proportional to the target's crew skill Multiplied by (targetmaxhull) / (mymaxhull), capped to 1.0 Multiplied by (myshieldperc+myhullperc) / (targetshieldperc+targethullperc), capped to 1.0 Reduced to a quarter if attacker is not personally flown by the player Reduced to a half if target is capital ship Reduced to a third if target is Xenon Known mitigation: Knowledge Bail 30s -> 10s — Reduces the tedium of waiting for bails. No Bail Penalty — Removes maximum hull difference penalty. No Claim Damage — Removes the hidden marine claim damage mechanic. Shipyard Penalty Ships sold at player-owned wharfs and shipyards have a penalty on sale price to slow down the snowball into infinite wealth. The ship price is calculated by: Cost of components * 5 (with ~15% variance based on supply) The penalty is 70% when the slider is at 100%. So, even with this penalty, you're making 50% more than the components alone. The penalty is also only 55% when the slider is at 150%. It would catapult you into infinite wealth far too quickly without the penalty, since selling ships would be 5x more profitable than their components. The profit is also only limited by your production capacity as ships have near infinite demand. It is therefore a necessary bandaid for the unbalanced economy. Known mitigation: No Player Shipyard Penalty[www.nexusmods.com] — Lessens or removes the penalty. I don't recommend this mod, but players should be aware of the penalty and decide for themselves. Conclusion This list is not exhaustive. Although I've made this other Steam Guide to help other players learn the game, it is difficult to learn these mechanics since they are in fact hidden. This guide does not include the dozens of factoids which are impossible to learn in-game, as I simply don't have the ability to find, remember, and summarize so many of them. An example of such a factoid is the effect of defense drones in low-attention. There is a common misconception that they do nothing. It is a reasonable assumption since they are not visually launched and their effect is not indicated anywhere in the UI. However, drones do contribute to the low-attention battle simulation despite giving zero feedback for it. In low-attention, drones both increase the DPS of their owner and absorb incoming damage. Further, it does not include the mountain of mechanics which are unclear or confusing to new players, such as: scrap processor cooldown, pirate cover system, logarithmic scaling of reputation and ranks, scanner tiers, station budget scaling to storage capacity, sector ownership rules, and so on. X4's design is unfortunately rampant with obtuse opacity. I chose the most important concepts because we'd both be trapped here forever if I tried to explain every hidden mechanic.