Survival Cube is the NBA game where every player on the board carries a price, and your only job is to find the ones worth more than they cost. It is one mode inside SixRings Cube on databallr, and it is the unforgiving one: twenty-five cells, no spending limit, three strikes and the run is over. A strike is not a wrong name. It is a player whose measured impact for that season came in under his row's price, and the game refuses to show you that number until after you have committed. This guide covers what the Survival Cube is, how a run plays, where its prices come from, and which daily NBA games give you the same three-strikes tension without a decade of advanced-stat history in your head.
What the Survival Cube Is
The Survival Cube lives at databallr.com/sixrings/cube/survival, and the line across the top of the page is the whole pitch: pick players who beat their price, three misses and you are out, impact via darko.app. It is one of five modes in SixRings Cube, which databallr's how-to-play page calls part of its family of 82-0-style NBA blind-draft games.
The board is twenty-five cards. Five salary rows run down the left, from $5 at the top to $1 at the bottom, and five position columns run across, point guard through center. Every card is a single player-season rather than a career, each with the team he played it for. Name, position, team and year are all visible. The only thing hidden is the number that decides whether the pick is safe.
How a Survival Cube Run Plays Out
The Cube's how-to-play page states the objective in one sentence: clear all twenty-five cells without getting three strikes. The supporting rules are just as short.
- Three strikes and you are out. A player whose impact is below his row price gives you a strike. Meeting or beating the price is safe.
- Pick a player, reveal his value. Choose any unpicked player. Your pick locks in, his value is revealed, and all unpicked players are replaced.
- Impact minus price is net value. Each pick scores the player's DARKO DPM for that season minus his row price, and your score is the total of all your picks. There is no spending limit.
The site's own worked example is a $5 player who reveals a 5.8 and therefore beats his price by 0.8. That is the shape of the whole game: you are not asked who was good, you are asked whether a specific season cleared a specific bar.
The replacement rule is the cruel one. Every pick rerolls every card you have not taken, so you cannot plan a route through twenty-five cells. You can only read the board in front of you, take the safest card on it, and look at a new board.
How the Rings Are Awarded
When a run ends, your net is ranked against every other Survival run, and the ring tiers come straight off the Cube's rules page: one ring for the top 90 percent, two for the top 80, three for the top 60, four for the top 40, five for the top 20, and six rings for a net of plus 12 or better.
That last line is worth reading twice. Six rings is an absolute number, not a percentile, and clearing all twenty-five cells does not earn it by itself. A cautious clear with a thin net lands fewer rings than a greedy run that banked a big surplus and then struck out on cell nineteen. The game is scored on margin, not on survival alone.
Where the Prices Come From: DARKO Impact
Every price on the board is a bet against DARKO, so it is worth knowing what DARKO is. DARKO stands for Daily Adjusted and Regressed Kalman Optimized projections, a public NBA projection system built by Kostya Medvedovsky. Its headline rating, DPM, stands for Daily Plus Minus: the points per 100 possessions a player adds to his team's scoring margin over an average player. Zero is average, and higher is better on both the offensive and defensive halves, so a plus 2 on defense means good defense.
DARKO's about page says the system weighs every game a player has ever played, the recent ones counting most, across every player's games since 1996-97, and that in HoopsHype's survey of NBA team staff DPM ranked first among the public all-in-one metrics: 8 of 29 respondents named it their preferred metric.
Now do the arithmetic the board is doing. Zero is average, so a card in the $5 row is asking whether that season was five points per 100 possessions better than an average NBA player. DARKO's about page puts the top one percent of the league it rates at plus 5.3. The top row is, in effect, a top-one-percent row, and a merely very good season placed there is a strike waiting to happen. The $1 row asks for almost nothing, which is where a long run is actually built.
The Four Modes the Survival Cube Strips Down
Survival is the odd one out. The other four modes are salary-cap drafts, and the Cube hub describes each in a line: Simple is the start-here mode, spend $15 and draft players whose DARKO impact beats their cost; Bonus Chips Only adds stacking bonuses with no usage penalty; Usage is billed as the most realistic; Bonuses plus Usage is the complete game.
The solo Cube page spells out what those cap modes score. You get $15, five picks and a 25-player board, and every pick locks a card and rerolls the other twenty-four. Trait pairs pay: a lob thrower with a lob catcher is worth plus 1.0, two rim defenders plus 0.8, spacing or steals the same ladder. Picks who actually shared an NBA roster pay plus 0.3 a pair, and all five positions covered pays plus 1.0. Then the usage rates add up, and past a combined 105 the score bleeds about a tenth of a point per point over, to a floor of minus 2.25.
Survival throws all of it away. No cap, no chips, no usage check, no lineup to fill. Just the price and the number, twenty-five times.
Where the Survival Cube Falls Short
None of this is a knock on a well-built game, but the format has edges worth naming.
The first is that there is no shared board. The leaderboards are daily, and the Survival page ranks the best verified build per player for the day, but the cards are dealt fresh every run and rerolled after every pick. There is no single puzzle you and a friend both played this morning and can argue about.
The second is that the thing being tested is a model's rating, not a fact. Recalling that a player made an All-Defensive team is a memory. Estimating whether a season's DARKO DPM cleared 4.0 is a different hobby, closer to reading impact leaderboards than to watching basketball, and that gap is where most newcomers collect three strikes in about ninety seconds.
The third is that the social half needs an account: the page's own lobby line says chat is for logged-in players, and the leaderboard panels ask you to sign in to track your finishes. You can play as a guest, but you play alone.
Higher or Lower: The Same Three Strikes, Career Stats Instead
If what you like about Survival is the lives-ticking-down feeling rather than the draft board, Higher or Lower is the closest daily game we run. Two NBA players, one career stat, both named with their headshots from the start. Player A's number for that stat is shown. You call whether Player B's is higher or lower, the number is revealed, and you move on.
Ten rounds a day, five lives, and your longest streak of correct calls is your score. The category changes every round rather than every day, drawn from a bank of more than thirty: career points, rebounds, assists, three-point percentage, free-throw percentage, anything quantifiable across a career. The axis you just got a feel for is not the axis the next round asks about.
The important difference from Survival is what the hidden number is. Here it is a career fact, verifiable on any reference site the moment the round ends, so a wrong call is something you can go and check. There is no model in the middle, the pool spans every era from Bill Russell forward, and it costs you nothing to be a fan rather than an analyst.
Era Draft: Nine Picks From NBA History
If it is the drafting you came for, Era Draft is the closer cousin. Every day gets one simulation era, and you draft by spinning a roulette of franchise-decades. Each spin lands on a team and a decade, the 1990s Bulls or the 1960s Celtics or the 1970s Kentucky Colonels, and you take any player from that team-era roster. You fill five starting positions and four bench spots, draft a coach, and get two respins for the whole draft.
Players perform at their rating from that decade specifically, taxed for playing out of position or far from their home era. When the nine are locked the season simulates: 72 games in 1950s and 1960s sims, 82 otherwise, with half your games needed to reach an era-accurate bracket. The simulated season is fiction and labelled as such, so the names are real and the results are not. The daily scored run uses a shared seeded wheel, so everyone faces the same spins in the same order.
The parallel to the Survival Cube is exact: build under a constraint, commit before you know, find out afterwards. What differs is the currency. Era Draft asks what a player actually did in that decade. The Cube asks what a model made of him.
Survival Cube and airball.gg, Side by Side
- The hidden number. Survival Cube hides a DARKO DPM for one season. Higher or Lower hides a career total or rate. Era Draft hides the simulation, not the player.
- The failure state. Three strikes in the Cube, five lives across ten rounds in Higher or Lower, a losing season in Era Draft.
- The board. The Cube deals a private board and rerolls it after every pick. Our daily games give everybody the same puzzle on the same day, which is the whole reason a score is worth sharing.
- The era range. The Cube's prices come from a rating documented from 1996-97 onward. Era Draft spans over two hundred franchise-decades from the 1950s to the 2020s, the ABA included.
- What it costs. Both are free in a browser, and neither needs an account to start.
Reads That Keep a Value Run Alive
Scroll the Survival Cube's Top Builds and the same kind of name keeps appearing: Manu Ginobili, Tim Duncan, Kawhi Leonard, Andre Iguodala, Ben Wallace. An impact rating pays for efficiency and defense at a usage a box score barely notices, so the archetype it rewards is the two-way player who was rarely his team's leading scorer. Ginobili won four championships with San Antonio, in 2003, 2005, 2007 and 2014, and was Sixth Man of the Year in 2007-08, but he made only two All-Star teams, in 2005 and 2011. The All-Star count is the box score's verdict. The rings are closer to the model's.
Andre Iguodala is the cleanest case the format has. He was Finals MVP in 2015, and in that regular season he started zero of the 77 games he played, coming off the Golden State bench for 26.9 minutes and 7.8 points a night. He made exactly one All-Star team, back in 2012. Price that season off the scoring line and you are a strike away from nothing.
Defense is the other half an impact rating pays for, and the award shelf is a decent map of it. Rudy Gobert has won Defensive Player of the Year four times, in 2017-18, 2018-19, 2020-21 and 2023-24. Draymond Green won it in 2016-17 and has four rings. Dennis Rodman won it in 1989-90 and 1990-91, then took seven straight rebounding titles from 1991-92 through 1997-98. The caution runs the other way too: Duncan won five titles and never won the award at all, so the trophy is a signal and not the rating.
The same split decides every Higher or Lower round, because career totals are compiled by longevity as much as by peak. John Stockton still leads the NBA all time in both assists, at 15,806, and steals, at 3,265. Wilt Chamberlain's 23,924 rebounds lead, and Hakeem Olajuwon's 3,830 blocks lead the official era, which began in 1973-74. LeBron James passed Kareem Abdul-Jabbar's 38,387 points on February 7, 2023 in his twentieth season and is now in his twenty-fourth, past the 22 Vince Carter played when 22 was the record. Tracy McGrady played 16. On a totals axis the longer career usually wins even when the peaks were close.
Rate stats invert it. Steve Kerr shot 45.4 percent from three for his career, still the best of any qualified shooter in league history, ahead of Luke Kennard at 44.3. Steve Nash finished at 90.4 percent from the line, the all-time mark for years until Stephen Curry went past it. Read the stat label first. It decides the answer more often than the two names do.
Games Like the Survival Cube
If the Cube sent you looking for more daily NBA puzzles, the rest of the slate covers other corners of the same knowledge. Career Path shows a player's franchise-by-franchise journey and asks you to name him. Hoop Grid is the nine-square teams-and-stats board. Connections groups sixteen players into four hidden categories. Who Am I? hides a player behind six clues. All of them reset daily, and all of them hand every player the same puzzle.
Related Reading
- Era Ball: How the NBA Era Sim Game Works, and Games Like It
- The NBA Salary Cap Explained: Tax and Aprons
- How to Read an NBA Box Score: Every Stat Explained
- Best NBA Trivia Games to Play Online in 2026
The Survival Cube rewards one specific instinct: knowing which players were worth more than they looked. Sharpen it on our daily Higher or Lower quiz, where the number is a career fact you can check, then take the draft board itself in Era Draft.