Effects › Cognitive
Mastery
Perceived growth of player skill through repeated use of the mechanic.
57 mechanics carry this tag.
Action Points
Each turn a player receives a fixed budget of points and spends them on any combination of actions from a menu with differing costs, with unspent points usually lost at the end of the turn.
Aim and Recoil
The player steers a reticle onto a target in real time while spread, recoil, and sway perturb it after each shot, so whether a shot lands is decided by continuous pointing precision and recovery rather than by a roll.
Alignment Games
Players alternately place or move pieces on a lattice and win, or score, by forming a straight line of a set number of their own pieces, so each turn is a choice between advancing a line and blocking one.
Boss Encounters
A climactic, individually authored enemy or wave sequence closes a segment of play with its own rules, scale, and phases, so progress is gated by defeating it rather than by attrition against ordinary opponents.
Clue Giving
One player who knows a secret word or target composes a clue under rules that forbid the obvious, and teammates must guess the target from it, with the quality of the clue deciding the score.
Combat Building
During a fight players spend materials gathered in the match to raise walls, floors, ramps and roofs in real time, as cover, height or a blocked route, and opponents can shoot the structures down
Combo Systems
Successive actions executed within a timing window chain together, with each link enabling or multiplying the next, so a correctly timed sequence yields more than the same actions performed separately.
Connection Games
Two players alternately place pieces on a shared board and the first to form an unbroken chain of their own pieces linking designated edges or points wins outright, so every placement both extends one path and obstructs the other.
Constraint Logic Puzzles
A grid or arrangement must be filled so that every stated rule holds at once, such as no repeated symbol in a row, and the unique solution is reached by eliminating what the constraints forbid rather than by searching hidden state.
Contract Bidding
Before play, players compete to declare how much they will achieve, such as a number of tricks, the highest declaration becomes a binding contract, and scoring rewards fulfilling it and penalises falling short.
Cooldowns
After an ability is used it becomes unavailable for a fixed interval of time or turns, so the player rations powerful actions by timing rather than by spending a pooled resource.
Cover Systems
Positioning a unit behind terrain or an object reduces the chance or amount of damage it takes from attacks along the obscured line, so position becomes a defensive resource.
Crowd Blending
A player's figure looks the same as computer-controlled figures around it, so the player survives by acting like them while an opponent watching the crowd must pick that figure out by its behaviour
Damage Types and Resistances
Each source of damage carries a type such as fire, piercing, or magic, and each target has fixed resistances, weaknesses, or immunities per type that scale the damage it takes, so the kind of attack matters as well as its size.
Deck-Building
Players start with identical weak decks and improve them during play by acquiring cards into their own draw pile, so each purchase changes the distribution of future hands.
Deduction
Players uncover a hidden fact fixed at setup by making queries whose answers eliminate possibilities, racing to be the first to state the solution with certainty.
Dexterity
Physical manipulation of components, such as flicking, stacking, balancing, or throwing, resolves an action directly, so success depends on motor skill rather than on a randomiser or a chosen option.
Difficulty Settings
A rule-level parameter, chosen before play or adjusted by the system during it, scales enemy strength, resources, or margins for error so that the same content can be played at several levels of challenge.
Doubling Cube
Before rolling, a player may offer to double the stake of the current game; the opponent must either concede at the present stake or accept the doubled stake and take sole possession of the right to double again.
Equipment and Loadouts
Before or between engagements the player selects a limited set of items, weapons, or abilities from a larger pool into fixed slots or under a budget, and that selection defines what the character can do until it is changed.
Game Clocks
Each side holds a budget of wall-clock time that runs while it is their turn to act, and exhausting the budget forfeits the game, a move, or possession, so thinking time is a rationed in-game resource.
Ghost Data
A recorded run, usually the best one so far, is replayed alongside a live attempt on the same course as a non-interfering figure, so the player races or compares against a past performance rather than a live opponent.
Grid Movement
Pieces move across a board divided into discrete cells, usually squares or hexagons, spending a movement allowance per cell entered, so distance, adjacency, and terrain are counted rather than measured.
Hand Management
Players hold a private set of cards and must decide which to play, keep, or discard each turn, trading immediate use against future options under a hand limit.
Handicapping
A rule-sanctioned adjustment gives the weaker player a stated advantage, such as extra pieces, a head start, or an adjusted score, so that players of unequal skill can contest the same game on roughly even terms.
High-Score Tables
A machine or service keeps a ranked list of the best final scores achieved on a game, usually with a short name or initials entered by each scorer, and shows it to later players as targets to beat.
Hitboxes and Hurtboxes
Each attack has an active volume and each target a vulnerable volume, both defined apart from the drawn sprite or model and switched on for specified frames, and an attack connects only when the two overlap.
Hunt Games
Two sides on one board are unequal in number, movement and goal, so that one or a few strong pieces try to capture the others or escape while many weaker pieces, unable to take them, try to hem them in
Last Hitting
Only the attack that defeats a unit earns its bounty of gold or a similar reward, so players time a final blow on weakened enemies, and in the denying form may finish allied units to withhold that reward from opponents
Limited Communication
Players who share a goal are forbidden by rule from freely discussing their private information, so coordination must pass through a narrow sanctioned channel such as a rationed clue or a single token.
Memory
State that was briefly shown and then concealed, such as face-down cards or a played sequence, must be retained and recalled without aids, so success depends on remembering what has already been revealed rather than on new information.
Parry and Dodge Windows
A defensive input succeeds only if it is entered within a short window relative to an incoming attack, negating the hit and often opening a counter-attack opportunity.
Pattern Recognition
Players race to perceive a configuration satisfying a stated rule, such as a matching pair or a valid triple, in a shared layout; the first to call or grab it is rewarded, and play does not otherwise transform the layout.
Permadeath
When a character dies, all progress bound to that character is lost and cannot be restored by reloading, so each life is a single irreversible attempt.
Physics Puzzles
The player arranges objects or sets a launch and then lets a simulated or real physical system run, and the challenge is predicting gravity, momentum, and collision well enough that the system produces the required result.
Piece Capture
A piece removes an opposing piece from the board by moving onto it, leaping over it, or enclosing it, so a spatial relation between pieces converts directly into permanent material loss.
Platforming
An avatar traverses platforms and hazards by running and jumping under a fixed movement model, so progress depends on the timing and placement of each jump rather than on choosing among options.
Point-Buy
Players build a character, unit, or army by spending a fixed budget of points on capabilities priced in a published cost table, so every ability is bought at a stated price and builds of equal total are presumed comparable.
Push Your Luck
A player who has banked a provisional gain repeatedly chooses whether to stop and keep it or to continue for more at the risk of a bust that forfeits everything accumulated this turn.
Rating and Matchmaking
A numerical rating moves after each game by transferring points from loser to winner in proportion to how unexpected the result was, and a pairing rule uses the ratings to decide who plays whom next.
Rerolls
After seeing a roll or a draw, the player may throw some or all of the dice again, or redraw, within a fixed allowance or at a cost, and the new result replaces the old one.
Rhythm Action
Notes shown ahead on a track or bar meet a judgement point in time with a piece of music, the player enters the matching input as each arrives, and every input is graded by its timing, so a song's result sums many graded timing tests.
Roguelike Meta-Progression
Currency or unlocks earned during a run survive the run's end and permanently expand what later runs start with or can contain, layering persistent progression over permadeath.
Roll and Write
Dice are rolled, in modern designs usually once for the whole table, and each player records results on a personal score sheet, choosing where each is written under constraints that make later placements harder.
Side Swapping
A match is split into innings, rounds or halves, and the sides exchange roles or ends between them, so that each side plays both parts and the result combines what each scored in every part
Skill Trees
Players spend points earned through progression to unlock abilities from a branching graph in which each node requires its prerequisites, so build choices accumulate into a distinct specialisation.
Sliding and Pushing Block Puzzles
Pieces are slid or pushed one step at a time within a bounded grid where they cannot pass through one another, and the goal is to reach a target arrangement in a legal sequence of moves.
Sowing
A player lifts all the counters from one pit and drops them one at a time into successive pits around a circuit, with captures or further moves decided by where the last counter lands and what it finds there.
Status Effects
A named temporary state such as poisoned, stunned, or hasted is attached to a character and alters its capabilities by a fixed rule until it expires, is cured, or is otherwise removed.
Stealth and Detection
The player avoids being noticed by guards or opponents who detect according to sight, sound, and proximity rules, and detection changes the game state, so remaining unseen is itself the objective.
Team Play
Players are grouped by rule into fixed teams that win or lose together, with scores pooled and often with differentiated roles inside the team, so the contest is between groups rather than individuals.
Threat and Aggro
Each hostile picks its target from a running tally of how much every player has provoked it, so a party controls who gets attacked by generating, holding, or shedding that tally rather than by position alone.
Time Loops
The game world resets to a fixed starting state after a set interval or on failure while the player keeps what they have learned and sometimes a few items, so progress is made in knowledge across repeated cycles.
Trick-Taking
Players each contribute one card from hand to a round called a trick under a follow-suit rule, the highest card by rank or trump wins the trick, and the number or content of tricks won is scored.
Variable Player Powers
Each player begins with a different rule exception, capability set, or faction that breaks the symmetry of the shared rules, so the same situation offers different options to different players.
Word Building
Players form valid words from a limited supply of letters, by placing tiles on a shared grid or assembling them from a rack or draw, and score by letter values, word length, or placement.
Zone of Control
Each piece projects a zone into the cells adjacent to it, and an enemy piece entering the zone must stop, pay extra, or accept an attack, so a piece controls more ground than it occupies.